Question

sumas y restas de fracciones

2/21 + 5/7=

8/6 + 7/42 =

13/2 + 3/11 =

21/15 + 8/3 =

8/7 - 3/8 =

11/5 -9/35=

9/3 - 8/7=

10/6 - 4/8

​

Answer 1

Respuesta:

2/21 + 5/7 = 17/21

8/6 + 7/42 = 3/2

13/2 + 3/11 = 149/22

21/15 + 8/3 = 61/15

8/7 - 3/8 = 43/56

11/5 - 9/35 = 68/35

9/3 - 8/7 = 13/7

10/6 - 4/8 = 7/6