Question

Find the LCD for the following fractions:

(4/15x^3), (5/12x^2). answers: 25^3, 60x^3, 25x^5, 60x^5

Answer 1

60x^3

Explanation:

Given:

4/15x^3 and 5/12x^2

finding LCM of denominators (15x^3,12x^2)

for variable x, as x^3 is the heighest power so we'll keep x^3

now for the numeric part

15= 3*5

12=3*4

common factor is 3, so

3*4*5 =60

hence LCD= 60x^3!