Question

Вычислить (4-3/4÷1,2)×0,6

Answer 1

$(4 - \frac{3}{4} \div 1.2) \times 0.6 = (4 - \frac{3}{4} \div \frac{6}{5} ) \times 0.6 = \\ = (4 - \frac{3 \times 5}{4 \times 6} ) \times 0.6 = (4 - \frac{5}{4 \times 2} ) \times \frac{6}{10} = \\ = (4 - \frac{5}{8} ) \times \frac{3}{5} = 3 \frac{3}{8} \times \frac{3}{5} = \frac{27 \times 3}{8 \times 5} = \frac{81}{40} = \\ = 2 \frac{1}{40}$