Сократите дроби 1)12n^2/24mn^2+42n 2)40cd^2-10d/25d^2 3)9n^2/9mn^2+6n

Question

Сократите дроби
1)12n^2/24mn^2+42n
2)40cd^2-10d/25d^2
3)9n^2/9mn^2+6n

Answer 1

1) n/(2mn+4) 2) (8cd-2)/5d 3) 3n/(3mn+2)