Question

responda as questões abaixo :

a) 5× 3/4 × 5/3 =

b) 1/2 × 3/7 ×1/5 =

c) 3/2 × 5/8 × 1/4 =

d) 5/4 × 3 × 4/7 =​

Answer 1

A multiplicação de frações envolve multiplicar numerador com numerador e denominador com denominador.

A)

$\frac{5}{1} \times \frac{3}{4} \times \frac{5}{3} = \frac{5 \times 3 \times 5}{1 \times 4 \times 3} = \frac{75}{12}$

B)

$\frac{1}{2} \times \frac{3}{4} \times \frac{1}{5} = \frac{1 \times 3 \times 1}{2 \times 4 \times 5} = \frac{3}{40}$

C)

$\frac{3}{2} \times \frac{5}{8} \times \frac{1}{4} = \frac{3 \times 5 \times 1}{2 \times 8 \times 4} = \frac{15}{64}$

D)

$\frac{5}{4} \times \frac{3}{1} \times \frac{4}{7} = \frac{5 \times 3 \times 4}{4 \times 1 \times 7} = \frac{60}{28} = \frac{15}{7}$