Question

Me ajudem porfavo!
Tenho que entregar Quarta​

Answer 1

Resposta:

desculpa a demora

$a) \frac{3}{4} \times \frac{1}{2} = \frac{3 \times 1}{4 \times 2} = \frac{3}{8} \\ \\ b) \frac{2}{3} \times \frac{1}{4} \times \frac{8}{5} = \frac{2 \times 8 \times 1}{3 \times 4 \times 5} = \frac{16}{60} = \frac{4}{15} \\ \\ c) \frac{9}{7} \times \frac{3}{4} = \frac{9 \times 3}{7 \times 4} = \frac{27}{28} \\ \\ d) \frac{4}{5} \times \frac{2}{7} \times \frac{9}{6} = \frac{4 \times 2 \times 9}{5 \times 7 \times 6} = \frac{24}{70} \\ \\ e) \frac{8}{5} \times \frac{7}{8} = \frac{7}{5} \\ \\ f = \frac{8}{5} \times \frac{1}{3} \times \frac{4}{6} = \frac{8 \times 1 \times 4}{5 \times 3 \times 6} = \frac{16}{45}$

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

$b) \frac{81}{5} \div \frac{27}{25} = \frac{81}{5} \times \frac{25}{27} = \frac{45}{3} = 15$

$c) \frac{7}{9} \div \frac{14}{3} = \frac{7}{9} \times \frac{3}{14} = \frac{1}{6}$

$d) \frac{10}{3} \div \frac{5}{9} = \frac{10}{3} \times \frac{9}{5} = \frac{90}{15} = 6$

$e) \frac{3}{4} \div \frac{3}{8} = \frac{3}{4} \times \frac{8}{3} = 2$

$f) \frac{6}{15} \div \frac{2}{3} = \frac{6}{15} \times \frac{3}{2} = \frac{3}{5}$

espero que isso ajude vc