Question

Найдите значение выражения :
(11/10-4/11):15/44

Заранее спасибо))

Answer 1

$( \frac{11}{10} - \frac{4}{11} ): \frac{15}{44} =2.16 \\ \\ 1) \frac{11}{10} - \frac{4}{11} = \frac{11*11}{10*11} - \frac{4*10}{11*10} = \frac{121}{110} - \frac{40}{110} = \frac{81}{110} \\\\2) \frac{81}{110} : \frac{15}{44} = \frac{81*44}{110*15} = \frac{27*4}{10*5} = \frac{27*2}{5*5} = \frac{54}{25} =2 \frac{4}{25} =2 \frac{4*4}{25*4} = \\ =2 \frac{16}{100} =2.16$