What is the LCM of 9 and 15?A) 15 B) 30 C) 45 D) 54

Mathematics · Middle School · Wed Jan 13 2021

Answered on

To find LCM of 9 and 15, we have to find factors of 9 and 15 

Factors of 9 and 15 are :

9 = 3²

15 = 3¹ × 5¹

LCM = 3² × 5

= 45

 

Hence, option (C) is correct.