Tuesday, June 22, 2010

3/8 divide 5/12 (9/10)= How do you work this problem?

(3/8) / (5/12) (9/10)





In dividing fractions, get the reciprocal of the divisor and multiply normally. (Numerator-numerator, denominator-denominator)





= (3/8) / (5/12) (9/10)


= 3/8 * 12/5 (9/10)


= 36/40 * 9/10


= 324/400 or 81/100





Hope this helps.3/8 divide 5/12 (9/10)= How do you work this problem?
3/8 divide by 5/12 (9/10)





when dividing by fractions, you will need to 'flip' one of the fractions then switch the operation from divide to multiply (it may sound a little confusing, but it is quite simple) in this case i will flip th 5/12





so it will become...3/8 * 12/5 (9/10)


notice the 5/12 has been flipped to 12/5


now simple multiplication is needed of the numerator and denominator





it will become.......... 36/40 * 9/10


also multiplication is needed





it will become- 324/400


now we need to simplify the fraction as much as possible





both 324 and 400 are divisible by 4 so it will become 81/100





both numbers cannot be simplified further so the answer is 81/1003/8 divide 5/12 (9/10)= How do you work this problem?
a/b divided by c/d =


a/b * d/c


invert the second term





3/8 divide 5/12 (9/10)=





1. Multiply the denominator (bottom part)


5/12 * 9/10 = 45/120 = 9/24 = 3/8





2. invert the denominator


3/8 ---%26gt; 8/3





3. (3/8) * (8/3) = 1





4. OR... Once you get the 3/8 over 3/8, you know that anything divided by itself is 1

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