Question

lcd 50x^5y, 90x^4y^3, 45x^2y^4

Answer 1

it's finding the Lowest Common Denominator of a fraction. I think I use the highest degree of each variable and the gcf of the coefficient?

Answer 2

Reduce each coefficient into prime numbers, and then simply make sure that each one has the same exact primes and same number of exponents for x and y.

For instance, 50x^5y = (2)(5^2)x^5y

Answer 3

Did that work for ya?