Question

#2 сократите дробь:
1)30p⁷q⁹t/24p⁷q⁸t³
2)20mn-4m²/m²-10mn+25n²
(напишите как решали)

Answer 1

$cfrac{30p^7q^9t}{24p^7q^8t^3}=cfrac{30p^{7-7}q^{9-8}t^{1-3}:6}{24:6}=cfrac{5qt^{-2}}{4}=cfrac{1,25q}{t^2}$


$cfrac{20mn-4m^2}{m^2-10mn+25n^2}=cfrac{4m(5n-m)}{(m-5n)^2}=cfrac{4m}{5n-m}$