Respuesta :

Answer:

Look 1*3/5=3/5

2*3/4=6/4

3/5=12/20

6/4=30/20

+

42/20=21/10

And second one

3*1/6=3/6=1/2

5*2/7=10/7

1/2=7/14

10/7=20/14

+

27/14

Step-by-step explanation: