Question

A) (1/3+3/6)-(2/5+3/10)=
B) (3/6+4/6)-(2/5+1/3)+2/10=

Answer 1

Explicación paso a paso:

$(\frac{1}{3} + \frac{3}{6} ) - ( \frac{2}{5} + \frac{3}{10} ) = \\ \\ (\frac{5}{6} ) - ( \frac{7}{10} ) \\ \\ \frac{5}{6} - \frac{7}{10} = \frac{4}{30} reduciendo = \frac{2}{15} \\ \\ \\ \\ \\ \\ (\frac{3}{6} + \frac{4}{6} ) - ( \frac{2}{5} + \frac{1}{3} ) + \frac{2}{10} = \\ \\ (\frac{7}{6} ) - (\frac{11}{15} ) + \frac{2}{10} = \frac{19}{30}$