Question

Determine o valor da expressão 2/3: 4/5 + 1/2

Answer 1

2/3:4/5=
2/3·5/4=
10/12 mais 1/2-
8/6

Answer 2

vamos lá...

$\frac{2}{3} \div \frac{4}{5} + \frac{1}{2} = \\ \\ \frac{\not2}{3} \times \frac{5}{\not4_2} + \frac{1}{2} = \\ \\ \frac{5}{6} + \frac{1}{2} = \frac{5+3}{6} = \frac{8:2}{6:2} = \frac{4}{3}$