Question

Efetue as seguintes operações com frações:


a) 1/2 + 2/3
b) 3/7 + 5/3
c) 5/2 - 7/4
d) 7/6 - 1

Answer 1

Resposta:

a) 1/2 + 2/3

mmc = 6

3/6 + 4/6

10/6 :(2)

5/3

b) 3/7 + 5/3

mmc = 21

9/21 + 35/21

44/21

c) 5/2 - 7/4

mmc = 4

10/4 - 7/4

3/4

d) 7/6 - 1

mmc = 6

7/6 - 6/6

1/6