Question

Find the lowest common denominator of 3/x^3y and 7/xy^4

A. x^3y^4

B. x^4y^5

C. y^4

D. x^2y^3

Answer 1

3/(x^3y)
7/(xy^4)

To find the LCD you have to use the HIGHEST power of the variables.
x^3y^4 would be the LCD
LETTER A

Answer 2

The answer I came up with is A)