Question

Срочно надо пожалуйста

Answer 1

$3\frac{3}{4} + \frac{4}{5} = \frac{15}{4} + \frac{4}{5} = \frac{75}{20}+ \frac{16}{20} =\\\frac{75+16}{20} = \frac{91}{20} = 4\frac{11}{20}$

$3\frac{1}{8} + 1 \frac{1}{4} = \frac{25}{8} + \frac{5}{4} = \frac{25}{8} + \frac{10}{8} = \frac{35}{8} = 4 \frac{3}{8}$

$10-4\frac{5}{12} = 5\frac{7}{12}$

$6\frac{1}{5} - 2 = 4\frac{1}{5}$

$6\frac{5}{6} - 2\frac{1}{3} = 6\frac{5}{6} - 2\frac{2}{6} = 4\frac{3}{6} = 4\frac{1}{2}$

$3\frac{1}{5} - 1\frac{1}{4} = \frac{16}{5} - \frac{5}{4} = \frac{54-25}{20} = \frac{29}{20} =\\\\1\frac{9}{20}$