Okay, so 7/20 is 0.35.

Why would you multiply it by 5?

Wow, fairly simple although it seems hard. : D

ou need to get it over 100 for easy change to a decimal.

7/20 is equal to 35/100.

You multiplied the 20 by 5 to get 100

You need to multiply the 7 by 5 to get 35

You get 35/100

Any number over 1 is itself.

Divide 100 by 100 to get 1

Divide 35 by 100 (You can do that right) to get 0.35

=0.35