Выполните вычитание дробей: 1) (4d + 7)/(7d) − (d − 6)/(6d); 2) (m − n)/(mn) − (p − m)/(mp); 3) (6a + 2)/(ab) − (2a + 4)/(a²b); 4) (c² − 16)/c⁶ − (c − 9)/c⁵; 5) 1/x³ − (1 + x²)/x⁵; 6) (1 − ab)/(abc) − (1 − ad)/(acd).

Question

Вопрос:

Accepted Answer

\(\dfrac{6(4d+7)-7(d-6)}{42d}=\dfrac{17d+84}{42d}\).
\(\dfrac{p(m-n)-n(p-m)}{mnp}=\dfrac{pm+mn-2np}{mnp}\).
\(\dfrac{a(6a+2)-(2a+4)}{a^2b}=\dfrac{6a^2-4}{a^2b}\).
\(\dfrac{c^2-16-c(c-9)}{c^6}=\dfrac{9c-16}{c^6}\).
\(\dfrac{x^2-(1+x^2)}{x^5}=-\dfrac{1}{x^5}\).
\(\dfrac{d(1-ab)-b(1-ad)}{abcd}=\dfrac{d-b}{abcd}\).

Ответ: