Сократите дробь: а. 3a^2x/36a^3x^3 б. - 42mn^9/39m^9nв. 25x^n+1y^n+2/45x^ny^2

Сократим дробь:

а) (3 * a² * x) / (36 * a³ * x³) = (a² * x) / (12 * a³ * x³) = x / (12 * a * x³) = 1 / (12 * a * x²);

б) ( - 42 * m * n⁹) / (39 * m⁹ * n) = ( - 14 * m * n⁹) / (13 * m⁹ * n) = - (14 * m * n⁹) / (13 * m⁹ * n) = - (14 * n⁹) / (13 * m⁸ * n) = - (14 * n⁸) / (13 * m⁸);

в) (25 * xⁿ ^{+ 1} * yⁿ ^{+ 2}) / (45 * xⁿ * y²) = (5 * xⁿ ^{+ 1} * yⁿ ^{+ 2}) / (9 * xⁿ * y²) = 5/9 * x ^{(n + 1) - n} * y ^{(n + 2) - 2} = 5/9 * x ¹ * yⁿ = 5/9 * x * yⁿ.