Question

efetue os produtos, simplificando as fracoes quando possivel
a) 3/4 . 2/3 =
b) 5/8 . 4/5 =
c) 2/7 . 7/9 =​

Answer 1

Resposta:

A)1/2

B) 1/2

C) 2/9

Explicação:

espero ter ajudado

Answer 2

Resposta:

a) 3/4 . 2/3 =

$=\frac{1}{2}$ (Decimal: 0.5)

b) 5/8 . 4/5 =

$=\frac{1}{2}$ (Decimal: 0.5)

c) 2/7 . 7/9 =​

$=\frac{2}{9}$ (Decimal: 0.22222....)

Explicação:

a) 3/4 . 2/3 =

$\frac{3 x 2}{4 x 3} \\\\= \frac{2}{4} \\\\= \frac{2}{2 x 2} \\\\= \frac{1}{2}$

b) 5/8 . 4/5 =

$\frac{5 x 4}{8 x 5} \\\\= \frac{4}{8} \\\\= \frac{4}{4 x 2} \\\\= \frac{1}{2}$

c) 2/7 . 7/9 =​

$\frac{2 x 7}{7 x 9} \\\\= \frac{2}{9}$