Question

Questões de frações
QUERO A CONTA pfv (isto q nao estou conseguindo fazer)

A) 1/3 × 2/7

B) 1/5 × 2/8

C) 3/7 × 1/5

D) 1/3 ÷ 2/7

E) 1/5 ÷ 2/8

F) 3/7 ÷ 1/5

Answer 1

A) 1/3 × 2/7 = 2/21

B) 1/5 × 2/8 = 2/40 = 1/20

C) 3/7 × 1/5 = 3/35

D) 1/3 ÷ 2/7 = 1/3 x 7/2 = 7/6

E) 1/5 ÷ 2/8 = 1/5 x 8/2 = 8/10 = 4/5

F) 3/7 ÷ 1/5 = 3/7 x 5/1 = 15/7