Question

помогите с примером

Answer 1

Ответ:

1)=2

2)=6

Пошаговое объяснение:

$1) = \frac{7}{4} \times \frac{18}{7} \div \frac{9}{2} + \frac{12}{5} \times \frac{10}{9} \times \frac{3}{8} = \frac{9}{2} \times \frac{2}{9} + \frac{4 \times 2}{3} \times \frac{3}{8} = 1 + 1 = 2 \\ 2) = \frac{7}{20} \times 9 + 12 \times \frac{7}{36} + \frac{23}{15} \times \frac{1}{4} + \frac{3}{5 } \div \frac{9}{2} = \frac{63}{20} + \frac{7}{3} + \frac{23}{60} + \frac{3}{5} \times \frac{2}{9} = \frac{63}{20} + \frac{7}{3} + \frac{23}{60} + \frac{2}{15} = \frac{63 \times 3 + 7 \times 20 + 23 \times 1 + 2 \times 4}{60} = \frac{ 360}{60} = 6$