Вариант 1. 5. Решите уравнения: 1) 7 5/24 − x = 2 5/16; 2) (x + 5/12) − 9/20 = 11/15.

1. \(7\frac{5}{24}-x=2\frac{5}{16}\).
   \(x=7\frac{5}{24}-2\frac{5}{16}=7\frac{10}{48}-2\frac{15}{48}=4\frac{43}{48}\).
2. \(x+\frac{5}{12}-\frac{9}{20}=\frac{11}{15}\).
   \(\frac{5}{12}-\frac{9}{20}=\frac{25}{60}-\frac{27}{60}=-\frac{1}{30}\), значит \(x-\frac{1}{30}=\frac{11}{15}\).
   \(x=\frac{11}{15}+\frac{1}{30}=\frac{22}{30}+\frac{1}{30}=\frac{23}{30}\).

Ответ: 1) \(x=4\frac{43}{48}\); 2) \(x=\frac{23}{30}\).