Question

Calcule o valor numérico de cada uma das seguintes expressões:

a) 3/4 + 2/3 ×5/4

b) 7/8 - 1/3 × 9/10

c) 1/5 × 1/3 + 1/2 × 1/10

d) 5/6 × 3/5 - 7/10

Answer 1

3/4+2/3.5/4=
9/12+8/12.15/12=
9/12+120/12=
129/12:3=
43/4