Question

12-X-7:y, если x=⅛, y=5​

Answer 1

$12 - \frac{1}{8} - \frac{7}{5} = \frac{12 \times 40}{1 \times 40} - \frac{1 \times 5}{8 \times 5} - \frac{7 \times 8}{5 \times 8} = \frac{480}{40} - \frac{5}{40} - \frac{56}{40} = \frac{480 - 5 - 56}{40} = \frac{419}{40} = 10 \frac{19}{40}$