Question

помогите с тестом!!!!​

Answer 1

$\frac{1}{5} +m=\frac{17}{60} \\m=\frac{17}{60} -\frac{1}{5} \\m=\frac{17}{60}- \frac{12}{60} \\m=\frac{5}{60} \\m=\frac{1}{12}$

Ответ $\frac{1}{12}$