Question

2) Efetue as operações

a) 1 7/8 + 1/4 - 1/2

b) 12/5 . 10/3 . 2/4

c) 100/7 : 5/49

d) ( 4/3 - 1) : 2/3

e) 6/7 + (1/2 - 2/5) . 5

f) [ ( 2/3 + 2) . 1/5] : 1/2 ​

Answer 1

Resposta:

a) 15/8

b) 4

c) 140

d) 1/2

e) 19/14

Explicação passo a passo:

a) 17/8 + 1/4 - 1/2 = 17/8 + 2/8 - 4/8 = 15/8

b) 12/5 . 10/ 3 . 2/4 = 240/60 = 4

c) 100/7 : 5/49 = 100/7 . 49/5 = 140

d) 4/3 - 3/3 : 2/3 = 1/3 . 3/2 = 1/2

e) 6/7 + (5/10 - 4/10) . 5 = 6/7 + 5/10 = 60/70 + 35/70 = 95/70 = 19/14