Question

6)determine o valor de cada expressão numérica
a)2/3:4/5+1/2
b)1/2-5/8:5/4​

Answer 1

Explicação passo-a-passo:

a) 2/3 ÷ 4/5 + 1/2=

2/3 × 5/4 + 1/2=

10/12 +1/2=

5/6 + 1/2=

10 + 6

_____=

12

16/12=

8/6=

4/3

b) 1/2 - 5/8 ÷ 5/4=

1/2 - 5/8 × 4/5=

1/2 - 20/40=

1/2 - 2/4=

1/2 - 1/2=

0