Question

5-)Efetue os cálculos entre os números decimais em cada um dos itens a seguir

A)1/2+2/3=

B)1/5-4/7=

C)2/6+3/6=

D)(2/3)x(4/7)=

E) (2/3) : (4/7)=

Answer 1

Explicação passo a passo:

a) 1/2 + 2/3 = 3/6 + 4/6 = 7/6

b) 1/5 - 4/7 = 7/35 - 20/35 = -13/35

c) 2/6 + 3/6 = 5/6

d) (2/3)*(4/7) = (2*4)/(3*7) = 8/21

e) (2/3)/(4/7) = (2/3)*(7/4) = 14/12 = 7/6