Question

Помогите плиз тему пропустил

Answer 1

$1) frac{3x}{y} times frac{y}{15x} = frac{3x times y}{y times 15x} = frac{x}{5x} \ 3) frac{26x ^{7} }{51y ^{5} } times frac{34y^{3} }{39x ^{4} } = frac{26x ^{7} times 34y ^{3} }{51y ^{5} times 3x ^{4} } = frac{4x ^{3} }{9y ^{2} } \ 5) frac{25k ^{6} }{11p ^{3} } times 44p ^{9} = frac{25k ^{6} times 44p ^{9} }{11p ^{3} } = \ 25k ^{6} times 4 p^{6} = 100{k}^{6} {p}^{6}$
вроде бы так...