Question

Questão 01 - Efetue as multiplicações e as divisões com as frações. a) 2/3 x 5/4 b) 2 x 2/3 c) 3/4 : 2/5 d) 2/3 : 1/4​

Answer 1

Resposta:

$a) \: \frac{2}{3} \times \frac{5}{4} \\ \\ \frac{10 \div 2}{12 \div 2} \\ \\ = \frac{5}{6}$

$b) \: 2 \times \frac{2}{3} \\ \\ \frac{2}{1} \times \frac{2}{3} \\ \\ \frac{4}{3}$

$c) \: \frac{3}{4} \div \frac{2}{5} \\ \\ \frac{3}{4} \times \frac{5}{2} \\ \\ \frac{15}{8}$

$d) \: \frac{2}{3} \div \frac{1}{4} \\ \\ \frac{2}{3} \times \frac{4}{1} \\ \\ \frac{8}{3}$