3. Решите уравнения: (x − 3/8) + 1/6 = 5/12; 3 3/4 − (y + 2/5) = 1 7/10.

1. \((x-\frac38)+\frac16=\frac5{12}\).
   \(x=\frac5{12}-\frac16+\frac38=\frac{10}{24}-\frac4{24}+\frac9{24}=\frac{15}{24}=\frac58\).
2. \(3\frac34-(y+\frac25)=1\frac7{10}\).
   \(y+\frac25=3\frac34-1\frac7{10}=\frac{15}{4}-\frac{17}{10}=\frac{75-34}{20}=\frac{41}{20}\).
   \(y=\frac{41}{20}-\frac8{20}=\frac{33}{20}=1\frac{13}{20}\).

Ответ: \(x=\frac58\); \(y=1\frac{13}{20}\).