Question

What ust be added to 9/20 to get 13/15

Answer 1

Answer:

Step-by-step explanation:

Let x be added

x+ 9/20=13/15

x = 13/15 - 9/20

x = 52-37\60

x = 15/60

x = 1/4

Answer 2

5/12
hope so it's correct