Question

3/4 +1/3 x 2/5 : 4/3 x 5/2 -3/4
obs : o x é multiplicação

Answer 1

$\frac{3}{4} + \frac{1}{3} . \frac{2}{5} : \frac{4}{3} . \frac{5}{2} - \frac{3}{4} = \\ \\ = \frac{3}{4} + \frac{2}{15} : \frac{20}{6} - \frac{3}{4} = \\ \\ = \frac{3}{4} + \frac{2}{15}. \frac{6}{20} - \frac{3}{4} = \\ \\ = \frac{3}{4} + \frac{2}{50} - \frac{3}{4} = \\ \\ = \frac{3}{4} - \frac{3}{4} + \frac{2}{50} = \\ \\= 0+ \frac{2}{50} = \frac{2}{50} = \frac{1}{25}$