Answer:
Let’s use 2 methods to do this:
First, let’s try cross multiplying:
3/4=x/20
2/5=x/20
20 times 3 = 60
60 divided by 4 is 15, so 3/4 = 15/20
20 times 2 = 40
40 divided by 5 is 8, so 2/5 = 8/20
The next method:
What time 4 equals to 20? What times 5 equals to 20?
4 times FIVE equals to 20
For the fraction of 3/4, multiply the numerator and the denominator by five to get your answer of 15/20.
5 times FOUR equals to 20
For the fraction of 2/5, multiply the numerator and the denominator by four to get your answer of 8/20.
Hope I helped!
