SOLUTION: Need to simplify the following expressions. showing how to cancel and factor. 1. 18/24= 2. 7rs^3/21r^2s= 3. 3y-3/y^2-1

Question 875660: Need to simplify the following expressions. showing how to cancel and factor.
1. 18/24=
2. 7rs^3/21r^2s=
3. 3y-3/y^2-1
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
1) 18/24
Divide numerator and denominator by 6
18/24 = 3/4
2) 7rs^3 / 21r^2s
Divide numerator and denominator by 7rs
s^2 / 3
3) 3y-3 / y^2-1
In numerator factor 3 and in denominator factor the squares
3(y-1) / (y-1)(y+1)
Divide numerator and denominator by (y-1)
3 / (y+1)

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