Question

3) sendo x = 1/2 e y = 4/9, determine o valor de:

a) x + y

b) x- y

c) x • y

d) x : y​

Answer 1

Resposta:

A) 1/2 + 4/9

9/18 + 8/18

17/18

B) 1/2 - 4/9

9/18 - 8/18

1/18

C) 1/2 × 4/9

(1 × 4)/(2 × 9)

4/18

2/9

D) 1/2 : 4/9

1/2 × 9/4

(9 × 1)/(4 × 2)

9/8

Espero Ter Ajudado !!