Comments on: How do you solve this middle school math problem? I NEED TO KNOW NOW!!!!!!!?

By: magix151

magix151 — Tue, 16 Feb 2010 14:38:59 +0000

Seems like everyone has already given you the answer. I would give the BA to Jesseboebessie. Her answer was by far the best worded and informative among them all.
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By: <3 H3ARTL3SS <3

<3 H3ARTL3SS <3 — Tue, 16 Feb 2010 14:33:59 +0000

wow that is a hard problem once you get to a certain step.
1st u change 4 6/7 and 1 8/9 to improper fractions. That would mean 4 6/7 changes to 34/7 and 1 8/9 changes to 17/9. then u multiply…
thats where it gets hard… when u get ur answer…simplify. i did the problem on a calculater and got 9.1746032 so i think u may have the wrong problem or something.. sorry hope i helped a little..
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By: Iggy

Iggy — Tue, 16 Feb 2010 13:58:59 +0000

there should be no whole number.
change the 4 into a fraction
4/1 is = to 4. find the LCM (least common multiples) of the 6/7 and 4/1 denominator
6/7 x 1/1 = 6/7
4/1 x 7 = 28/7 + them = 34/7. no whole # do the same with with the other fraction
(both fraction don’t need to have the same denominator)
you could cross cancel to make it easy.
1/1 x 9 = 9/9 + 8/9 = 17/9

try to simplify both number crossway. find a GCF (greatest common factor) since there’s no GCF. you’ll have to multply them —>
34 17 34 x 17 = ? 7x 9 =?
x
7 9 numerator goes to the top. denominator in the bottom. the you SIMPLIFY if possible. sorry if it is confusing.
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By: ♥@r@celi♥

♥@r@celi♥ — Tue, 16 Feb 2010 13:40:59 +0000

9 11/63

9.174603175

i just put your problem in my texas instrument calculator.
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By: Kay

Kay — Tue, 16 Feb 2010 13:03:59 +0000

The trick is to put the whole numbers into the fractions. You do this by multiplying the whole number (let’s say, 4) by the denominator (7), and adding it to the numerator (6). The new number you calculated becomes the new numerator.
4 6/7
4 x 7 + 6 = 34/7

1 8/9
1 x 9 +8 = 17/9

Now you multiply them. You multiply the numerators to make the new numerator, and the denominator to make up the new denominator.

34/7 x 17/9 = 578/63

Check these answers in case I made a mistake!
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By: Billy C

Billy C — Tue, 16 Feb 2010 12:48:59 +0000

Do u know how to multiply normal fractions?
just make the mixed number in to a fraction with a larger numerator.
But Make sure to keep the denominator
4 6/7 ->34/7 1 8/9-> 17/9 <—- 1*9+8=17
4*7= 28 + 6 = 34/7 * 17/9 =answer
I’m not telling you the answer though just the way to do it
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By: SuperGreatGuy

SuperGreatGuy — Tue, 16 Feb 2010 12:19:59 +0000

4 6/7 = 34/7 & 1 8/9 = 17/9.

34/7 x 17/9 = 578/63 = 9.17…

To convert from a mixed number to a fraction, multiple the denominator by the whole number part and add this to the numerator, e.g. 7×4+6=34.

To multiply two fractions, just put the product of their numerators over the product of their denominators.
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I passed middle school.

By: i<3cheesecake

i<3cheesecake — Tue, 16 Feb 2010 11:39:59 +0000

Alright, so change all mixed fractions to improper fractions, much easier that way.

So:

7 x 4 = 28, 28 + 6 = 34………..resulting in 34/7

1 x 9 = 9, 9 + 8 = 17………….resulting in 17/9

So now it becomes :

34/7 x 17/9——since no simplification can be done, just multiply straight.

= 578/63

^_^
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By: Deshan M

Deshan M — Tue, 16 Feb 2010 11:00:59 +0000

IF ALL U WANT IZ DA ANSWER IZ 9 11/63 BUT DIS IZ HOW U DO IT

1) MULTIPLY BOTH OF THE WHOLE NUMBERS BY THE DENIMONATORS (BOTTOM NUMBER) YOU WILL GET 34/7 AND 17/9

2)MULTIPLY STRAIGHT ACROSS SO THE NUMIRATOR (TOP NUMBER) WILL BE 578 THE DENIMORATOR BOTTOM NUMBER) WILL BE 63

3)REDUCE AND U WILL GET 9 11/63
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By: Totally awesome

Totally awesome — Tue, 16 Feb 2010 10:29:59 +0000

4 48/63

reduced:
4 3/4

pick me best answer!

(i think were in the same grade lol)
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