Question

Faça as operações com as frações, simplificando quando necessário.

A) 7/12 - 3/8

B) 4/15 + 3/4

C) 8/16 - 7/20

D) 5/7 - 3/14

E) 23/28 + 9/21

F) 4/9 + 8/21

G) 13/18 - 4/27

H) 4/5 - 3/16

Answer 1

Explicação passo-a-passo:

A) 7/12 - 3/8

14 -9 = 5

2 24 24

B) 4/15 + 3/4

16 + 45 = 61

60 60 60

C) 8/16 - 7/20

40 -28 = 12 = 3

80 80 80 20

D) 5/7 - 3/14

10 -3 = 7 = 1

14 14 14 2

E) 23/28 + 9/21

69 + 36 = 105 = 5

84 84 84 4

F) 4/9 + 8/21

28 + 24 = 52

63 63 63

G) 13/18 - 4/27

39 -8 = 31

54 54 54

H) 4/5 - 3/16

64 -15 = 49

80 80 80