Question

15-38/90:54/90 помогите

Answer 1

Ответ:

$14\frac{8}{27}$

Пошаговое объяснение:

$15-\frac{38}{90} :\frac{54}{90}\\\\1)\frac{38}{90} :\frac{54}{90} = \frac{38*90}{90*54}=\frac{19*1}{1*27}=\frac{19}{27}\\\\2)15-\frac{19}{27}=\frac{5}{1} -\frac{19}{27}=\frac{405}{27}-\frac{19}{27}=\frac{386}{27} =14\frac{8}{27}$