Question

Find the LCM (Lowest common multiple)
Of 45 and 18

Answer 1

Answer:

90

Step-by-step explanation:

To find the least common multiple, first you have to find the prime factor of 18 and 45.

$\displaystyle 18: 2\times 3\times3=\boxed{18}\\\\\displaystyle 45: 3\times3\times5=\boxed{45}$

Multiply numbers from left to right.

$\displaystyle 2\times3\times3\times5=\boxed{90}$

Therefore, the least common multiple of 45 and 18 is 90.