Question

calcule e simplifique o resultado
a) 1/2 + 2/3 ÷ 10/9

b) 15/4 × 8/3 - 1/2

ME AJUDEM PFVV TO IMPLORANDO​

Answer 1

A)

$\frac{1}{2} + \frac{2}{3} \div \frac{10}{9} \\ \\ \frac{1}{2} + \frac{2}{3} \times \frac{9}{10}$

$\frac{1}{2} + \frac{3}{5} \\ \\ \frac{11}{10}$

B)

$\frac{15}{4} \times \frac{8}{3} - \frac{1}{2} \\ \\ 5 \times 2 - \frac{1}{2}$

$10 - \frac{1}{2} \\ \\ \frac{19}{2}$