Question #ad1b3

1 Answer
Apr 4, 2017

7x(x + 1)

Explanation:

10/(7 x), 2/(x + 1)

LCD = LCM (7 x, x+1)

(7 x, x+1) -> divide with 7 -> (x , x +1)

(x, x+1) -> divide with x-> (1 , x +1)

(1, x+1) -> divide with x + 1 -> (1 , 1)

LCD = LCM (7 x, x+1) = 7*x*(x+1) = 7x(x+1)

10/(7 x), 2/(x + 1) = (10(x+1))/(7x(x+1), (2*7x)/((x + 1)*7 x)

= (10x+10)/(7x(x+1), (14x)/((x + 1)*7 x)