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 .

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.

To simplify the fraction 90/20, you need to find the greatest common factor (GCF) of the numerator and the denominator, and then divide both the numerator and the denominator by the GCF.

Step 1: Find the GCF of 90 and 20.
To find the GCF, you can list the factors of each number and find the largest one they have in common.
Factors of 90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
Factors of 20: 1, 2, 4, 5, 10, 20

From the list, we can see that 10 is the largest factor they have in common.

Step 2: Divide both the numerator and denominator by the GCF (which is 10).
90 ÷ 10 = 9
20 ÷ 10 = 2

Therefore, the simplified fraction is 9/2, which is the answer you are looking for.