Во вложения.
Кто сможет - тот решит.

$frac{48p^3q^4}{36p^2q^3} = frac{4pq}{3} frac{x^2+6x+9}{x^2-9} = frac{(x+3)^2}{(x-3)(x+3)} =frac{x+3}{x-3}$
$frac{10x^2}{9y^2} = frac{40x^3}{36xy^2} frac{8}{12xy} = frac{24y}{36xy^2}$
$frac{b+2}{4b} = frac{(b+2)(b-2)}{4b(b-2)} frac{4b+5}{4b-8} = frac{b(4b+5)}{4b(b-2)}$
$frac{2c}{c+d} = frac{2c(d-c)}{(c+d)(d-c)} frac{3d}{d-c} = frac{3d(c+d)}{(c+d)(d-c)}$
$frac{5t}{t^2-25} = frac{5t}{(t-5)(t+5)} = frac{5t(t-5)}{(t-5)^2(t+5)} frac{t+5}{(t-5)^2} =frac{(t+5)^2}{(t-5)^2(t+5)}$