Question

Как такое решать? Просто под забыл уже

Answer 1

$6 \frac{5}{13} + 2 \frac{8}{13} = 8 \frac{5 + 8}{13} = 8 \frac{13}{13} = 9$
$5 \frac{4}{7} + 3 \frac{6}{7} = 8 \frac{4 + 6}{7} = 8 \frac{10}{7} = 9 \frac{3}{7}$
$1 - \frac{15}{19} = \frac{19}{19} - \frac{15}{19} = \frac{19 - 15}{19} = \frac{4}{19}$
$8 - 3 \frac{4}{9} = 5 - \frac{4}{9} = 4 \frac{9}{9} - \frac{4}{9} = 4 \frac{9 - 4}{9} = 4 \frac{5}{9}$
$7 \frac{3}{8} - 2 \frac{5}{8} = 5 \frac{3}{8} - \frac{5}{8} = 4 \frac{8 + 3}{8} - \frac{5}{8} = 4 \frac{11}{8} - \frac{5}{8} = 4 \frac{11 - 5}{8} = 4 \frac{6}{8} = 4 \frac{3}{4}$
$14 \frac{15}{32} - 9 \frac{19}{32} = 5 \frac{15}{32} - \frac{19}{32} = 4 \frac{32 + 15}{32} - \frac{19}{32} = 4 \frac{47}{32} - \frac{19}{32} = 4 \frac{47 - 19}{32} = 4 \frac{28}{32} = 4 \frac{7}{8}$