Question

CAN SOMEONE HELP ME!!!!!!!!!!!!!!!!!
what is the sum of (5/y+4)+(7/y-3)

Answer 1

You are adding two fractions, so you need a common denominator.
Can you find the LCD of y + 4 and y - 3?

Answer 2

they dont have any

Answer 3

right?

Answer 4

y + 4 and y - 3 are not the same and are not factorable, so there are no factors in common. They are called "mutually prime." The LCD of mutually prime quantities is their product. So the LCD you need is (y +4)(y - 3)

Answer 5

Since the left fraction already has y + 4 in the denominator, you need to multiply it by (y - 3)/(y - 3).
Since the right fraction already has y - 3 in the denominator, you need to multiply it by (y + 4)/(y + 4).

Answer 6

ok then what

Answer 7

After you do the step above, just add the fractions together and combine like terms in the numerator.

Answer 8

ok so my answer would be 12/(y+4)(y-3)