Question

A) 0,5+ 1/4×1/3

B) 1/2+1/3÷5/6

C) 1/4×0,5+1/2

D) 15÷(3/4 - 1/4)

E) ( 3 + 1/2 ) × 4/5

F) ( 0,75 + 1/4 ) ÷ 2/5 + 1/2

Pfv cm o calculo

Answer 1

Olá
a)0,5+1/4x1/3
5/10+1/4x1/3
1/2+1/12===>o mmc de 2,12= 12
6/12+1/12
7/12

b) 1/2+1/3÷5/6
1/2 +1/3x6/5
1/2+6/15===>o mmc de 2,15=30
15/30+12/30
27/30===>simplifica por 3
9/10

c)1/4x0,5+1/2
1/4x5/10+1/2
1/4x1/2+1/2
1/8+1/2===>o mmc de 8,2=8
1/8+4/8
5/8

d)15÷(3/4-1/4)
15 ÷2/4
15/1x4/2
60/2===>simplificando por 2
30

e) (3+1/2)x4/5==> o mmc de 1,2=2
6/2 +1/2x4/5
7/2x4/5
28/10====>simplificado por 2
14/5

f) (0,75+1/4)÷2/5+1/2
(75/100+1/4)÷2/5+1/2
(3/4+1/4)÷2/5+1/2
4/4÷2/5+1/2
1x5/2+1/2
5/2+1/2
6/2===>simplificado por 2
3

Espero ter ajudado.