Question

por favor solo es realizar las sumas de fracciones y las 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= 5/6 + 1721= 1/15 + 3/10

Answer 1

Respuesta:

2/21 + 5/7 =2/21+15/21=17/21

8/6 + 7/42=56/42+7/42=63/42

13/2 + 3/11=143/22+6/22=149/22

21/15 + 8/3=21/15+40/15=61/15

8/7 - 3/8=64/56-21/56=43/56

11/5 - 9/35 =77/35-9/35=68/35

9/3 - 8/7= 63/21-24/21=39/21

10/6 - 4/8= 40/24-12/24=28/24

5/6 + 17/21=35/42+34/42=69/42

1/15 + 3/10=2/15+9/15=11/15

Answer 2

Hola yo te puedo ayudar :)

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

5/6 + 17/21= 1/42

1/15 + 3/10= 7/30