SOLUTION: I know when dividing fractions the second set you flip and then it becomes multiplication. But what if you have three sets??
8/21 / (-4/7) / 4/3
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8/21 / (-4/7) / 4/3
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Question 61576: I know when dividing fractions the second set you flip and then it becomes multiplication. But what if you have three sets??
8/21 / (-4/7) / 4/3 Found 2 solutions by stanbon, joyofmath:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! 8/21 / (-4/7) / (4/3)
Start "flipping" on the right side
and keep flipping.)
=(8/21)/(-4/7)*(3/4)
Simplify:
=(8/21)/(-3/7)
Flip again:
=(8/21)*(-7/3)
Simplify:
=(8/3)*(-1/3)
= -8/9
Cheers,
stan H.
You can put this solution on YOUR website! I know when dividing fractions the second set you flip and then it becomes multiplication. But what if you have three sets??
8/21 / (-4/7) / 4/3
It all depends on how you group the fractions.
Let's look at a simple example: 40/2/5
If you do 40/2 first and then divide by 5 you get 20/5 = 4.
If you do 2/5 first then divide that into 40 you get .
In general, if you have then multiply numerator (a/b) and denominator (c) by 1/c to get .
If you have then multiply numerator (a) and denominator (b/c) by c/b to get .
So, see if you can now do the problem. Let me know if you can't.
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