Выполните деление 1) 3 4/5 : 5 7/10 2) 2 2/3 : 1 7/9 3) 6 5/9 : 6 4/19 4) 5 3/7 : 7 1/8 5) 1 13/15 : 1 3/5. Created by Знайка133718923. matematika-ru

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Знайка133718923 @Знайка133718923

August 2022 1 7 Report

Выполните деление 1) 3 4/5 : 5 7/10 2) 2 2/3 : 1 7/9 3) 6 5/9 : 6 4/19 4) 5 3/7 : 7 1/8 5) 1 13/15 : 1 3/5

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lilyatomach

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Пошаговое объяснение:

$1) 3\frac{4}{5} :5\frac{7}{10} = \frac{19}{5} :\frac{57}{10} =\frac{19}{5} * \frac{10}{57} =\frac{19*10}{5*57} = \frac{1*2}{1*3} =\frac{2}{3} ;\\\\2) 2\frac{2}{3} :1\frac{7}{9} =\frac{8}{3} :\frac{16}{9} =\frac{8}{3}*\frac{9}{16} =\frac{8*9}{3*16}= \frac{1*3}{1*2} =\frac{3}{2} =1\frac{1}{2} =1,5;$

$3) 6\frac{5}{9} :6\frac{4}{19} =\frac{59}{9} :\frac{118}{19} =\frac{59}{9} *\frac{19}{118} =\frac{59*19}{9*118} =\frac{1*19}{9*2} =\frac{19}{18} =1\frac{1}{18} ;\\\\4) 5\frac{3}{7} :7\frac{1}{8} =\frac{38}{7} : \frac{57}{8} =\frac{38}{7} *\frac{8}{57} =\frac{38*8}{7*57} = \frac{2*8}{7*3} = \frac{16}{21} ;\\\\5) 1\frac{13}{15} :1\frac{3}{5} = \frac{28}{15} :\frac{8}{5} = \frac{28}{15} *\frac{5}{8} =\frac{28*5}{15*8} =\frac{7*1}{3*2} =\frac{7}{6} =1\frac{1}{6} .$

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