Question

14a3b5 дробь 21a4b помогите

Answer 1

$frac{14a^{3}b^{5}}{21a^{4}b}= frac{2*7a^{3}b^{5}}{3*7a^{4}b}= frac{2}{3} a^{3-4}b^{5-1}= frac{2}{3} a^{-1}b^{4}=frac{2b^{4}}{3a}$