Question

Resolva a expressão numérica:
( 1/3-2/5)÷(-1/2+4/3)=?

Answer 1

$(\frac{1}{3} - \frac{2}{5} ) \div ( \frac{ - 1}{2} + \frac{4}{3} ) = \\ (\frac{5 - 6}{15}) \div( \frac{ - 3 + 8}{6} ) = \\ \frac{ - 1}{15} \div \frac{5}{6} = \\ \frac{ - 1}{15} \times \frac{6}{5} = \\ \frac{ - 6}{75} = \frac{ - 2}{25}$