Question

7)efetue as divisões

Answer 1

Resolução:
a) $5: \frac{2}{3}$

$5. \frac{3}{2} = \frac{15}{2}$

b) $2 \frac{1}{3} : \frac{4}{7}$

$\frac{3.2+1}{3}. \frac{7}{4}$

$\frac{7}{3} . \frac{7}{4}$

$\frac{49}{12}$

c) $3 \frac{2}{5} : \frac{1}{2}$

$\frac{5.3+2}{5}. \frac{2}{1}$

$\frac{17}{5}. \frac{2}{1} = \frac{34}{5}$

d) $\frac{4}{5}:1 \frac{1}{2}$

$\frac{4}{5}: \frac{2.1+1}{2}$

$\frac{4}{5}: \frac{3}{2}$

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

e) $\frac{2}{7}:4 \frac{2}{3}$

$\frac{2}{7}: \frac{3.4+2}{3}$

$\frac{2}{7} : \frac{14}{3}$

$\frac{2}{7}. \frac{3}{14}= \frac{6}{98}$

podemos simplificar por 2 que resulta em;

$\frac{3}{49}$

bons estudos: