Question

Preciso URGENTEMENTE de respostas!!

Efetue:

Answer 1

Explicação passo-a-passo:

$a) \frac{1}{2} + 14 = \frac{1+ 28}{2} = \frac{29}{2}$

$b) \frac{3}{8} + \frac{1}{2} - \frac{1}{3} = mmc = 24$

$\frac{9 + 12 - 8}{24} = \frac{13}{24}$

$c) \frac{1}{6} \div \frac{2}{5} = \frac{1}{6} \times \frac{5}{2} = \frac{5}{12}$

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