Question

Найдите значение выражения: 1,7 + 3,8 : 2,2

Answer 1

1,7+3,8:2,2=3 47/110

$1)3.8 \div 2.2 = 1 \frac{8}{11}$

$2)1.7 + 1\frac{8}{11} =1 \frac{7}{10} + 1 \frac{8}{11} = \frac{17}{10} + \frac{19}{11} = \frac{187}{110} + \frac{190}{110} = \frac{377}{110} = 3 \frac{47}{110}$

Answer 2

$1.7 + 3\div 2.2 = \\ \frac{17}{10} + \frac{19}{5} \div \frac{11}{5} = \\ \frac{17}{10} + \frac{19}{5} \times \frac{5}{11} = \\ \frac{17}{10} + 19 \times \frac{1}{11} = \\ \frac{17}{10} + \frac{19}{11} = \frac{377}{110}$