Question

50 БАЛОВ ИЗИ ПРИКЛАД
2 1/12 * 1 7/20
2/3:4/15

Answer 1

$1) \boxed{2 \frac{13}{16} }$

$2) \boxed{2 \frac{1}{2} }$

Объяснение:

$2 \frac{1}{12} \times 1 \frac{7}{20} = \frac{25}{12} \times \frac{27}{20} = \frac{5}{4} \times \frac{9}{4} = \frac{45}{16} = \boxed{2 \frac{13}{16} }$

$\frac{2}{3} \div \frac{4}{15} = \frac{2}{3} \times \frac{15}{4} = \frac{5}{2} = \boxed{2 \frac{1}{2} }$