57 Вправа 57Алгебра 8 клас Бевз 2025 · § 2 · стор. 19

57. Скороти дріб.

а) ${\displaystyle \frac{\cancel{x}(a-2)}{\cancel{x}(b+2)}=}$${\displaystyle \frac{a-2}{b+2}}$;

б) ${\displaystyle \frac{mp(m-p)}{m^{2}p(m+p)}=}$${\displaystyle \frac{\cancel{m}\cancel{p}(m-p)}{m\cancel{m}\cancel{p}(m+p)}=}$${\displaystyle \frac{m-p}{m\left(m+p\right)}}$;

в) ${\displaystyle \frac{27x^2(x+1)}{9x(x+1)}=}$${\displaystyle \frac{3x\cdot \cancel{9x}\cancel{\left(x+1\right)}}{\cancel{9x}\cancel{\left(x+1\right)}}=}$${\displaystyle 3x}$.