Add or subtract the following fractions by finding the least common denominators. Reduce all answers to the lowest terms.

Transcribed Image Text:

(a) 9x (b) + 5.x 4 2 = 4 9x 5x 9.x Multiplying the first term by and the second by, 6x 153 2 + 5.x 4 9.x + 25 4 5 2 9 20 18 38 = + = + = 5.x 9x 5.x 9 45x 45.x 45.x 7 5 7 5 7 = 3-3-y 6x 9y 2.2.x Multiplying the first term by 3y/3y and the second by 2x/2x, 5 6.x - 7 = 5 3y 7 ()() 9y 6.x 3y = 9y 2x 15y 14x 15y-14x 18.xy 18.xy = 18xy 6 (c) 7 + x+8 x Multiplying the first term by x/x and the second by (x+8)/(x+8) since there are no common factors, 6 6 7 +== x+8 x (x+8) 6.x = + x+8 x+8 7.x +56 13x+56 = x(x+8) x(x+8) x+8x