Question

Решите дробь 7/15+1/2
4/7-3/10

Answer 1

7/15+1/2=14/15+1=15/15=1
4/10-3/10=40/70-21/70=19/70

Answer 2

$\frac{7}{15} + \frac{1}{2} = \frac{14}{30} + \frac{15}{30} = \frac{29}{30}$
$\frac{4}{7} - \frac{3}{10} = \frac{40}{70} - \frac{21}{70} = \frac{19}{70}$