Question

Помогите пжпжжппжпжпж

Answer 1

Ответ:

$\frac{7}{4 {}^{2} } + \frac{5}{24} + ( - \frac{7}{6 {}^{2} } ) =\frac{7}{16}+\frac{5}{24}-\frac{7}{6^{2}} =\frac{21}{48}+\frac{10}{48}-\frac{7}{6^{2}} =\frac{21+10}{48}-\frac{7}{6^{2}} =\frac{31}{48}-\frac{7}{6^{2}} =\frac{31}{48}-\frac{7}{36} =\frac{93}{144}-\frac{28}{144} =\frac{93-28}{144} =\frac{65}{144}$