Question

3 - [ - 1/2 - ( 1/10 + 1/4 ) ]

Answer 1

Resposta:

77/20

Explicação passo-a-passo:

= 3 - [ - 1/2 - ( 1/10 + 1/4 ) ]

= 3 - [ - 1/2 - 1/10 - 1/4]

= 3 + 1/2 + 1/10 + 1/4

MMC (2,10,4) = 20

2,10,4: 2

1,5,2: 2

1,5,1: 5

1,1,1 = 2.2.5 = 2

= (20.3 + 10.1 + 2.1 + 5.1)/20

= (60+10+2+5)/20

= (70+7)/20

= 77/20