Question

5/3÷1/4
3/2²÷5/7
1/7×6/2
2/6×5/4
2/3²+3/2

Answer 1

Explicação passo-a-passo:

$a) \frac{5}{3} \div \frac{1}{4} = \frac{5}{3} \times \frac{4}{1} = \frac{5 \times 4}{3 \times 1} = \frac{20}{3}$

$b) \frac{3}{2 {}^{2} } \div \frac{5}{7} = \frac{3}{4} \div \frac{5}{7} = \frac{3}{4} \times \frac{7}{5} = \frac{21}{20}$

$c) \frac{1}{7} \times \frac{6}{2} = \frac{1 \times 6}{7 \times 2} = \frac{6}{14} = \div \frac{2}{2} = \frac{3}{7}$

$d) \frac{2}{6} \times \frac{5}{4} = \frac{2 \times 5}{6 \times 4} = \frac{10}{24} = \div \frac{2}{2} = \frac{5}{12}$

$e) \frac{2}{3 {}^{2} } + \frac{3}{2} = \frac{2}{9} + \frac{3}{2} = mmc = 18$

$\frac{4 + 27}{18} = \frac{31}{18}$