Question

Знайти значення виразу 3 5/8 - 2 1/4 : (1 1/2 + 1 2/7 • 3 1/2)

Answer 1

Пошаговое объяснение:

$3 \frac{5}{8} - 2 \frac{1}{4} \div (1 \frac{1}{2} + 1 \frac{2}{7} \times 3 \frac{1}{2} ) = \frac{29}{8} - \frac{9}{4} \div ( \frac{3}{2} + \frac{9}{7} \times \frac{7}{2} ) = \frac{29}{8} - \frac{9}{4} \div ( \frac{3}{2} + \frac{9}{2} ) = \frac{29}{8} - \frac{18}{8} \div ( \frac{12}{2} ) = \frac{11}{8} \div \frac{12}{2} = \frac{11}{8} \times \frac{2}{12} = \frac{22}{8 \times 12} = \frac{11}{4 \times 12} = \frac{11}{48}$

Answer 2

Ответ:

2 7/8

Пошаговое объяснение:

1) 1 2/7 * 3 1/2 = 9/7 * 7/2 = 9/2 = 4 1/2

2) 1 1/2 + 4 1/2 = 5 2/2 = 6

3) 2 1/4 : 6 = 9/4 * 1/6 = 3/2 * 1/2 = 3/4

4) 3 5/8 - 3/4 = 3 5/8 - 6/8 = 2 13/8 - 6/8 = 2 7/8