ВЫПОЛНИ ДЕЙСТВИЯ ДРОБИ 1)6-1 2\9 2)2 1\18-1\9 3)6 3\8-2 3\4 4)4 2\15-3 5\12

Решите задачу:

$1)6 - 1 \frac{2}{9} = 5 \frac{9}{9} - 1 \frac{2}{9} = 4 \frac{7}{9}$
$2)2 \frac{1}{18} - \frac{1}{9} = 2 \frac{1}{18} - \frac{2}{18} \\ = 1 \frac{19}{18} - \frac{2}{18} = 1 \frac{17}{18}$
$3)6 \frac{3}{8} - 2 \frac{3}{4} = 6 \frac{3}{8 } - 2 \frac{6}{8} = \\ = 5 \frac{11}{8} - 2 \frac{6}{8} = 3 \frac{5}{8}$
$4)4 \frac{2}{15} - 3 \frac{5}{12} = 4 \frac{8}{60} - 3 \frac{25}{60} = \\ 3 \frac{68}{60} - 3 \frac{25}{60} = \frac{43}{60}$