Question

4/7+2/3= calcule 8/5-3/2=
3/10+1/4=
4/5-2/3=
5/8-1/4=​

Answer 1

Olá...

a)

4/7 + 2/3 ⇒ mmc = 21

12 + 14/21

26/21

b)

8/5 - 3/2⇒mmc = 10

16 - 15/10

1/10

c)

3/10 + 1/4 ⇒mmc = 20

6 + 5/20

11/20

d)

4/5 - 2/3 ⇒ mmc = 15

12-10/15

2/15

e)

5/8 - 1/4 ⇒mmc =8

5 - 2/8

3/8

Espero ter ajudado.