Question

а)4*1/5+4 * 3/7-4*1/35. ​

Answer 1

$4 \times \frac{1}{5} + 4 \times \frac{3}{7} - 4 \times \frac{1}{35} = \frac{4}{5} + \frac{12}{7} - \frac{4}{35} = \frac{12}{5}$

Удачи))))