Question

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

Answer 1

1.12n^2/2n(12mn+21)=6n/12mn+21
2.40cd^2-10d/25d^2=5d(8cd-2)/25d^2=8cd-2/5d
3.9n^2/9mn^2+6n=9n^2/3n(3mn+2)=3n/3mn+2

Answer 2

1. 12n^2/24mn^2+42n = 1/2m(n+3)

2. 40cd^2-10d/25d^2 = 2c/d-1/5

3. 9n^2/9mn^2+6n = n/3m(n+2)