Question

efetue as multiplicações

A3/8•5/3

B1/2•2/3•5/4

C7/9•5/14•3/20

D4/9 •3/2•3/7

( • significa vezes)
rapidoooo​

Answer 1

Resposta:

a) 3/8 • 5/3 = 1/8 • 5 =1/8 • 5/1 = 5/8

b) 1/2 • 2/3 • 5/4 = 1/3 • 5/4 = 5/12

c) 7/9 • 5/14 • 3/20 = 1/3 • 1/2 • 1/4 = 1/24

d) 4/9 • 3/2 • 3/7 = 2/3 • 3/1 • 1/7 = 2/1 • 1/7 = 2/7