Question

efetue as frações com cálculos.

Answer 1

OI

a) 4/5 - 3/7 = mmc 5,7=35

28 - 15/35

13/35

b) 10/12 - 4/8==>mmc 12,8 = 24

20 - 12/24 =

8/24 ÷ 8

1/3

c) 6/8 - 3/4==>mmc 8,4 = 8

6 - 6/8

0/8

0

d) 12/4 - 7/3==>4,3 = 12

36-28/12

8/12÷4

2/3

e) 9/3 - 5/6 ==>mmc 3,6 = 6

18 - 5/6

13/6

f) 13/9 - 8/18 ==>mmc=9,18 = 18

26 - 8/18

18/18 ÷ 18

1

Espero ter ajudado