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Thread: Math Help Please!

  1. #1
    Master Sorcerer WAQKY's Avatar
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    Default Math Help Please!

    Help I have a test in multiplying and dividing decimals through fractions. HALP

    Ex.

    2.3 * 3.2 = 6.60

    23/10 * 32/10 = 66/100

    Most of the questions are like this too.

    4.8 / 4 = ?!?!

    ( / = divide )

    HALPHALPHALPHALPHALPHALPHALP
    Last edited by WAQKY; 10-05-2015 at 12:26 PM. Reason: Icekane told me to change symbols
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    Master Sorcerer AntoDecay's Avatar
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    What don't you understand?

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    Master Sorcerer IceKane's Avatar
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    Quote Originally Posted by WAQKY View Post
    Help I have a test in multiplying and dividing decimals through fractions. HALP

    Ex.

    2.3 x 3.2 = 6.60

    23/10 x 32/10 = 66/100

    Most of the questions are like this too.

    4.8 * 4 = ?!?!

    ( * = divide )

    HALPHALPHALPHALPHALPHALPHALP
    Note: * is multiply, try to use / next time.

    Anyway, 4.8/4 = 1.2. What you try to do is to disregard the decimal point, divide, then put it back where it should be. Be careful, though.
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    Master Sorcerer WAQKY's Avatar
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    Quote Originally Posted by IceKane View Post
    Note: * is multiply, try to use / next time.

    Anyway, 4.8/4 = 1.2. What you try to do is to disregard the decimal point, divide, then put it back where it should be. Be careful, though.
    Oh yeah! Thanks!



    I also don't understand when to get the reciprocal when dividing? I think?
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    Master Sorcerer AntoDecay's Avatar
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    Quote Originally Posted by WAQKY View Post
    I also don't understand when to get the reciprocal when dividing? I think?
    When you divide fractions, all you need to do is multiply the fraction by the reciprocal.
    (example of reciprocal. 3/4's reciprocal is 4/3)

    Use this if I didn't do well explaining:
    http://www.math.com/school/subject1/.../S1U4L5GL.html

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    Master Sorcerer IceKane's Avatar
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    Quote Originally Posted by WAQKY View Post
    Oh yeah! Thanks!



    I also don't understand when to get the reciprocal when dividing? I think?
    That's a totally different topic. Fractions, right? % = Divide, m'kay?

    When you divide two fractions, eg. (1/2 % 2/3), you need to get the reciprocal of the divisor, or the second number, then change the sign to multiplication. So the equation becomes something like this:
    (1/2 x 3/2) = 3/4
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    Master Sorcerer ianCSzz's Avatar
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    If you have trouble with decimal division, just multiply each of the numbers by 10, 100, 1000, etc. The point is you don't want any decimals.

    Ex : 6.9/3 = (6.9x10)/(3x10) = 69/30 = 23/10 = 2.3 (you know how to do this right?)
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    Master Sorcerer IceKane's Avatar
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    Quote Originally Posted by ianCSzz View Post
    If you have trouble with decimal division, just multiply each of the numbers by 10, 100, 1000, etc. The point is you don't want any decimals.

    Ex : 6.9/3 = (6.9x10)/(3x10) = 69/30 = 23/10 = 2.3 (you know how to do this right?)
    Man, these guys are having the easy life, while we have to deal with imaginary numbers and radicals
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    Master Sorcerer BioTestificate's Avatar
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    Quote Originally Posted by IceKane View Post
    Man, these guys are having the easy life, while we have to deal with imaginary numbers and radicals
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    Quote Originally Posted by WAQKY View Post
    Help I have a test in multiplying and dividing decimals through fractions. HALP

    Ex.

    2.3 * 3.2 = 6.60

    23/10 * 32/10 = 66/100

    Most of the questions are like this too.

    4.8 / 4 = ?!?!

    ( / = divide )

    HALPHALPHALPHALPHALPHALPHALP
    4.8 / 4

    48/10 : 4

    48/10 x 1/4 (turn it upside down okay)

    48 / 40
    ---------------- : 4 (read: divided by four)

    12 / 10

    1.2

    - - - Updated - - -

    Quote Originally Posted by IceKane View Post
    Man, these guys are having the easy life, while we have to deal with imaginary numbers and radicals
    I know right.
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    Master Sorcerer Ivy389's Avatar
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    Quote Originally Posted by WAQKY View Post
    Help I have a test in multiplying and dividing decimals through fractions. HALP

    Ex.

    2.3 * 3.2 = 6.60

    23/10 * 32/10 = 66/100

    Most of the questions are like this too.

    4.8 / 4 = ?!?!

    ( / = divide )

    HALPHALPHALPHALPHALPHALPHALP
    4.8/4=1.2

    Which grade are you in?

    I LOVE MATHS
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    Quote Originally Posted by BioTestificate View Post
    Small circle, big circle, MEASURE OF THE ARC OF THE CIRCLE, SECANTS AND TANGENTS, SECTORS!! SPARTACUS! DESCARTES LE FIBONACCI|!
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    Master Sorcerer Boy255's Avatar
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    If you have a test why do you have access to internet..?

    Also,4.8 is really easy,and dont you have calc?
    I have nothing to say other then


    https://youtu.be/IGtq-YDy3QM

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    Master Sorcerer Boomer's Avatar
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    Quote Originally Posted by IceKane View Post
    Man, these guys are having the easy life, while we have to deal with imaginary numbers and radicals
    Been there, done that. Now I'm running the easy life in Consumer Math for 12th grade.

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    Master Sorcerer Aunos's Avatar
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    Lucky it's just multiply and divide of fractions... We have to deal with x's and y's and occasional Z,A,B and C.

    my secret to get good grades in math...


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    Master Sorcerer Alexanderkg's Avatar
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    Quote Originally Posted by Boy255 View Post
    If you have a test why dude you have access to internet..?

    Also,4.8 is really easy,and dont you have calc?
    He want to know how to get the answers not only answer dude.
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    Master Sorcerer IceKane's Avatar
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    Quote Originally Posted by Boomer View Post
    Been there, done that. Now I'm running the easy life in Consumer Math for 12th grade.
    Ehh, luckily imaginary numbers are a piece of cake, so I'm spending my time studying trigonometry
    Quote Originally Posted by Shane1343 View Post
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  18. #18
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    im in 7th grade lol.


    i know how to do these but it hurts me.

  19. #19
    Master Sorcerer ianCSzz's Avatar
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    Quote Originally Posted by IceKane View Post
    Man, these guys are having the easy life, while we have to deal with imaginary numbers and radicals
    I haven't dealt with imaginary numbers (yet), but I am interested in them. Like, (-1)1/2 IS IMPOSSIBLE!!!
    IGN : Lavaloid

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    Master Sorcerer unconscious98's Avatar
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    Quote Originally Posted by Aunos View Post
    Lucky it's just multiply and divide of fractions... We have to deal with x's and y's and occasional Z,A,B and C.

    my secret to get good grades in math...

    Damn I'm jealous of your teacher. My teacher is ****. And immature. :l
    He is good at math but sucks at teaching. And also my science teacher.

    Here's one of the most basic lessons we had..

    It's so easy but he makes it seem harder.
    I cri evreritiem



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