Question

помогите с 5 и 6 пжжжжж

Answer 1

5.

$\frac{11}{4} \times \frac{10}{11} = \frac{5}{2} + \frac{10}{3} = \frac{15 + 20}{6} = \frac{35}{6} \\ \frac{2}{5} \times \frac{10}{3} = - \frac{4}{3} \\ \frac{5}{2} - \frac{4}{3} = \frac{15 - 8}{6} = \frac{7}{6} \\ \frac{35}{6} \times \frac{6}{7} = 5 \\ 5 \times \frac{7}{5} = 7$

$\frac{13}{6} + \frac{9}{2} = \frac{13 + 27}{6} = \frac{40}{6} \times \frac{3}{8} = \frac{5}{2} \\ \frac{11}{4} - \frac{4}{2} = \frac{11 - 8}{2} = \frac{3}{2} \\ \frac{5}{2} \times \frac{2}{3} = \frac{5}{3}$

$\frac{7}{1} - \frac{5}{3} = \frac{21 - 5}{3} = \frac{16}{3}$