Fine the lowest common multiple of90 and 150

450

Step-by-step explanation:

Find the prime factorization of the two numbers (using a factor tree)

90 = 2 * 3 * 3 * 5

150 = 2 * 3 * 5 * 5

(The common factors are bolded)

To find LCM, multiply all the factors from the two prime factorizations

However, only multiply the common ones once

2 * 3 * 3 * 5 * 5 = 450

a

step-by-step explanation:

the answer is a