Question

(2 1/3 - 1 1/2) * 2 1/4

3/7 * (2 4/9 + 2/3)

(5/12 * 1/4) * 12
По действиям

Answer 1

Ответ:

$1) = 1 \frac{7}{8} \\ 2) = 1 \frac{1}{3} \\ 3) = 96$

Пошаговое объяснение:

$1)(2 \frac{1}{3} - 1 \frac{1}{2} ) \times 2 \frac{1}{4} =1 \frac{7}{8} \\ 1)2 \frac{1}{3} - 1 \frac{1}{2} = 1 \frac{2 - 3}{6} = \frac{5}{6} \\ 2) \frac{5}{6} \times 2 \frac{1}{4} = \frac{5}{6} \times \frac{9}{4} = \frac{5 \times 9}{6 \times 4} = \frac{45}{24} = 1 \frac{7}{8} \\ \\ 2) \frac{3}{7} \times (2 \frac{4}{9} + \frac{2}{3}) =1 \frac{1}{3} \\ 1)2 \frac{4}{9} + \frac{2}{3} = 2 \frac{4 + 6}{9} = 2 \frac{10}{9} = 3 \frac{1}{9} \\ 2) \frac{3}{7} \times 3 \frac{1}{9} = \frac{3}{7} \times \frac{28}{9} = \frac{4}{3} = 1 \frac{1}{3} \\ \\ 3)( \frac{5}{12} \times \frac{1}{4}) \times 12 = 96 \\ 1) \frac{5}{12} \times \frac{1}{4} = \frac{5 \times 1}{12 \times 4} = \frac{6}{48} = \frac{1}{8} = 8 \\ 2)8 \times 12 = 96$