Question

Помогите решить 2/3 +1/9 это дроби
3/5+2/7
1/6+3/8
2/3-3/5
5/6-1/4

Answer 1

$\frac{2}{3} + \frac{3}{9} = \frac{6}{9} + \frac{3}{9} = \frac{9}{9} = 1$

$\frac{3}{5} + \frac{2}{7} = \frac{21}{35} + \frac{10}{35} = \frac{31}{35}$

$\frac{1}{6} + \frac{3}{8} = \frac{4}{24} + \frac{9}{24} = \frac{13}{24}$

$\frac{2}{3} - \frac{3}{5} = \frac{10}{15} - \frac{9}{15} = \frac{1}{15}$

$\frac{5}{6} - \frac{1}{4} = \frac{20}{24} - \frac{6}{24} = \frac{14}{24} = \frac{7}{12}$