Question

$№ \: 1352. \: Выполните \: \: деление:$

$а)1 \div 1 \frac{1}{4}$

$б)3 \div 1 \frac{1}{2}$

$в)12 \div 2 \frac{2}{3}$

$г)1 \div 3 \frac{5}{6}$

$д)45 \div 3 \frac{1}{3}$

$е)0 \div4 \frac{8}{9}$

$ж)120 \div 1 \frac{4}{5}$

$з)320 \div 3 \frac{1}{5}$
​

Answer 1

а)

$1 \div 1 \frac{1}{4} = 1 \div \frac{5}{4} = 1 \times \frac{4}{5} = \frac{4}{5}$

б)

$3 \div 1 \frac{1}{2} = 3 \div \frac{3}{2} = 3 \times \frac{2}{3} = 2$

в)

$12 \div 2 \frac{2}{3} = 12 \div \frac{8}{3} = 12 \times \frac{3}{8} = \frac{9}{2} = 4 \frac{1}{2} = 4.5$

г)

$1 \div 3 \frac{5}{6} = 1 \div \frac{23}{6} = 1 \times \frac{6}{23} = \frac{6}{23}$

д)

$45 \div 3 \frac{1}{3} = 45 \div \frac{10}{3} = 45 \times \frac{3}{10} = \frac{27}{2} = 13 \frac{1}{2} = 13.5$

е)

$0 \div 4 \frac{8}{9} = 0 \div \frac{44}{9} = 0 \times \frac{9}{44} = 0$

ж)

$120 \div 1 \frac{4}{5} = 120 \div \frac{9}{5} = 120 \times \frac{5}{9} = \frac{200}{3} = 66 \frac{2}{3}$

з)

$320 \div 3 \frac{1}{5} = 320 \div \frac{16}{5} = 320 \times \frac{5}{16} = 100$