Question

Как решить? Помогите пожалуйста

Answer 1

$\frac{97}{12} - \frac{49}{15} - \frac{37}{30} = \\ = \frac{97 \times 5}{12 \times 5} - \frac{49 \times 4}{15 \times 4} = \frac{37 \times 2}{30 \times 2} = \\ = \frac{485}{60} - \frac{196}{60} - \frac{74}{60} = \\ = \frac{485 - 196 - 74}{60} = \frac{215}{60} = \\ = \frac{43}{12} = 3 \frac{7}{12}$