Question

Выполни деление.
2/3 : 7/9, 6: 3/5, 4 1/2 : 3 3/4, 20/21 :15​

Answer 1

$\frac{2}{3} \div \frac{7}{9} = \frac{2}{3} \times \frac{9}{7} = \frac{2}{1} \times \frac{3}{7} = \frac{6}{7}$

$6 \div \frac{3}{5} = \frac{6}{1} \times \frac{5}{3} = \frac{2}{1} \times \frac{5}{1} = 10$

$4 \frac{1}{2} \div 3 \frac{3}{4} = \frac{9}{2} \div \frac{15}{4} = \frac{9}{2} \times \frac{4}{15} = \frac{3}{1} \times \frac{2}{5} = \frac{6}{5} = 1 \frac{1}{5}$

$\frac{20}{21} \div 15 = \frac{20}{21} \times \frac{1}{15} = \frac{4}{21} \times \frac{1}{3} = \frac{4}{63}$

$1) \frac{6}{7}$

$2)10$

$3)1 \frac{1}{5}$

$4) \frac{4}{63}$