Сократите дробь 15a²b³) / (18 а³b)=(5b) / (6a) (b²-9) / (b²+3b)=(b-3) (b+3) / (b (b+3)=(b-3) /b (48p³q⁴) / (36p²q³)=(4pq) /3 (x²+6x+9) / (x²-9)=(x+3) ^2 / (x-3) (x+3)=(x+3) / (x-3) Приведите дроби к наименьшему общему знаменателю (7x) / (12y) и (5y) / (8x) (7x) / (12y)=(7x*2x) / (12y*2x)=(14x^2) / (24xy) (5y) / (8x)=(5y*3y) / (8x*3y)=(15y^2) / (24xy) (3b) /a и 9/ (a+b) 3b/a=(3b*(a+b) / (a (a+b)=(3ab+3b^2) / (a^2+ab) 9/ (a+b)=(9*a) / (a+b) a)=(9a) / (a^2+ab) m/ (m+n) и n/ (m-n) m/ (m+n)=(m (m-n) / (m+n) (m-n)=(m^2-mn) / (m^2-n^2) n/ (m-n)=(n (m+n) / (m-n) (m+n)=(nm+n^2) / (m^2-n^2) (2a) / (3a-3) и (a+2) / (a²-1) (2a) / (3a-3)=(2a (a+1) / (3a-3) (a+1)=(2a^2+2a) / (3a^2-3) (a+2) / (a²-1)=(a+2)*3) / (a^2-1)*3)=(3a+6) / (3a^2-3) (10x²) / (9y²) и 8/ (12xy) (10x²) / (9y²)=(10x^2*x) / (9y^2*x)=(10x^3) / (9y^2x) 8/ (12xy)=2/ (3xy)=(2*3y) /. (3xy*3y)=(6y) / (9y^2x) (b+2) / (4b) и (4b+5) / (4b-8) (b+2) / (4b)=(b+2) (b-2) / (4b (b-2)=(b^2-4) / (4b^2-8b) (4b+5) / (4b-8)=(4b+5) b) / (4b-8) b)=(4b^2+5b) / (4b^2-8b) (2c) / (c+d) и (3d) / (d-c) (2c) / (c+d)=(2c (d-c) / (c+d) (d-c)=(2cd-2c^2) / (d^2-c^2) (3d) / (d-c)=(3d (c+d) / (d-c) (c+d)=(3cd+3d^2) / (d^2-c^2) (5t) / (t²-25) и (t+5) / (t-5) ² (5t) / (t²-25)=(5t (t-5) / (t^2-25) (t-5)=(5t^2-25t) / (t^3-5t^2-25t+125) (t+5) / (t-5) ²=(t+5) ^2) / (t-5) ^2 (t+5)=(t^2+10t+25) / (t^3-5t^2-25t+125)
