Question

Efetue as multiplicação:
a)3/4·1/2=
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b)9/7·3/4=
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c)2/3·1/4·8/5=
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d)14/5·2/7·49/6=
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e)6/5·25/3·9/2=
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f)16/15·7/14·5/8=
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ME AJUDE POR FAVOR?​

Answer 1

Explicação passo-a-passo:

a)

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

b)

$\frac{9}{7} \times \frac{3}{4} = \frac{9 \times 3}{4 \times 7} = \frac{27}{28}$

c)

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

d)

$\frac{14}{5} \times \frac{2}{7} \times \frac{49}{6} = \frac{1 \times 2 \times 49}{5 \times 1 \times 3} = \frac{98}{15}$

e)

$\frac{6}{5} \times \frac{25}{3} \times \frac{9}{2} = \frac{1 \times 5 \times 9}{1 \times 1 \times 1} = 45$

f)

$\frac{16}{15} \times \frac{7}{14} \times \frac{5}{8} = \frac{2 \times 1 \times 1}{3 \times 2 \times 1} = \frac{2}{6} = \frac{1}{3}$