Question

urgente :
(2/3+1/6)-(1-3/10)

Answer 1

$( \frac{2}{3} + \frac{1}{6} )-( 1-\frac{3}{10} ) \\ \\ ( \frac{4}{6} + \frac{1}{6} )-( \frac{1}{1}- \frac{3}{10}) \\ \\ \frac{5}{6} -( \frac{10}{10} - \frac{3}{10} ) \\ \\ \frac{5}{6}- \frac{7}{10} \\ \\ \frac{50}{60} - \frac{70}{60} \\ \\ -\frac{20}{60}$