Question

A)(+5/6):(+5/2)
B)(+2/3):(8/9)
C)(-4/6):(+7/12)
D)(-3/4):(-15/12)

Answer 1

Explicação passo-a-passo:

$a) \frac{5}{6} \div \frac{5}{2} = \frac{5}{6} \times \frac{2}{5} = \frac{5 \times 2}{6 \times 5} = \frac{10}{30} = \div \frac{10}{10} = \frac{1}{3}$

$b) \frac{2}{3} \div \frac{8}{9} = \frac{2}{3} \times \frac{9}{8} = \frac{2 \times 9}{3 \times 8} = \frac{18}{24} = \div \frac{6}{6} = \frac{3}{4}$

$c) - \frac{4}{6} \div \frac{7}{12} = - \frac{4}{6} \times \frac{12}{7} = - \frac{4 \times 12}{6 \times 7} = - \frac{48}{42} \div \frac{6}{6} = - \frac{8}{7}$

$d) - \frac{3}{4} \div - \frac{15}{12} = - \frac{3}{4} \times - \frac{12}{15} = + \frac{3 \times 12}{4 \times 15} = \frac{36}{60} = \div \frac{12}{12} = \frac{3}{5}$