Question

№1332. Найдите частное:

а)$8 \frac{2}{5} \div 1 \frac{1}{20}$

б)$4 \frac{5}{23} \div 1 \frac{3}{23}$

в)$20 \frac{5}{8} \div 13 \frac{3}{4}$

г)$12 \frac{2}{5} \div 3 \frac{1}{10}$

д)$8 \frac{6}{57} \div 12 \frac{3}{19}$
​

Answer 1

$\frac{делимое}{делитель} = часное$

А)

$8 \frac{2}{5} \div 1 \frac{1}{20} = \frac{42}{5} \times \frac{20}{21} = \frac{2}{1} \times \frac{4}{1} = 8$

Б)

$4 \frac{5}{23} \div 1 \frac{3}{23} = \frac{97}{23} \times \frac{23}{26} = \frac{97}{26}$

В)

$20 \frac{5}{8} \div 13 \frac{3}{4} = \frac{165}{8} \times \frac{4}{55} = \frac{3}{2} = 1.5$

Г)

$12 \frac{2}{5} \div 3 \frac{1}{10} = \frac{62}{5} \times \frac{10}{31} = \frac{2}{1} \times \frac{2}{1} = 4$

Д)

$8 \frac{6}{57} \div 12 \frac{3}{19} = \frac{462}{57} \times \frac{19}{231} = \frac{2}{3}$

Answer 2

а)

$8 \frac{2}{5} \div 1\frac{1}{20} = \frac{42}{5} \div \frac{21}{20} = \frac{42}{5} \times \frac{20}{21} = 8$

б)

$4 \frac{5}{23} \div 1 \frac{3}{23} = \frac{97}{23} \div \frac{26}{23} = \frac{97}{23} \times \frac{23}{26} = \frac{97}{26} = 3 \frac{19}{26}$

в)

$20 \frac{5}{8} \div 13 \frac{3}{4} = \frac{165}{8} \div \frac{55}{4} = \frac{165}{8} \times \frac{4}{55} = \frac{3}{2} = 1.5$

г)

$12 \frac{2}{5} \div 3 \frac{1}{10} = \frac{62}{5} \div \frac{31}{10} = \frac{62}{5} \times \frac{10}{31} = 4$

д)

$8 \frac{6}{57} \div 12 \frac{3}{19} = \frac{462}{57} \div \frac{231}{19} = \frac{462}{57} \times \frac{19}{231} = \frac{2}{3}$