Question

Сколько будет 11/20-1/12

Answer 1

$\frac{11}{20} - \frac{1}{12} = \frac{3 \times 11 - 5 \times 1}{60} = \frac{28}{60} = \frac{7 \times 4}{15 \times 4 } = \frac{7}{15}$