Question

Помогите решить пример!

Answer 1

Ответ:

Пошаговое объяснение:

$\frac{2}{9} *\frac{15}{16} -\frac{4}{42} *\frac{15}{16} -\frac{27}{63} +\frac{56}{63} =\\\\=\frac{5}{24} -\frac{5}{56} +\frac{29}{63}\\\\=\frac{35}{168} -\frac{15}{168} +\frac{29}{63}=\frac{20}{168} +\frac{29}{63}=\frac{5}{42} +\frac{29}{63}=\\\\=\frac{15}{126} +\frac{58}{126} =\frac{73}{126}$