6/5 times 15/4 =90/20 but i cant figure out what the answer is on my answer sheet i have to simplfly. please help thanks you ms.sue and brady .

4 answers

but 90/20 is 9/2
which is 4 1/2
which is 4.5
What are your choices?

Both Brady and I showed you how to simplify that fraction.
What goes into both 90 and 20?

5, right?

Well, just divide them each by 5 to get it even more simplified.

90/5 = 18

20/5 = 4

Now you have 18/4.

What goes into both 18 and 4?

2, right?

Now divide each by 2.

18/2 = 9

4/2 = 2

Now you have 9/2.

Now, you turn it into a mixed fraction, by figuring out how many 2's go into 9.

Four 2's go into 9 with a 1 left over.

Now you have 4 1/2, which is your final answer. I hope this helps! :)
Damon is correct as well. His way is a lot easier for fractions when both the numerator and denominator have zeros after their first digits.