Answer:
15
Step-by-step explanation:
15 = 5 x 3
5 = 5 x 1
The least common multiple is 5* 3 = 15
You take the common term and multiply
The multiple of 5 are 5, 10, 15 , 20 ...
The multiple of 15 are 15, 30, 45, 60...
The least common multiple from observation as you can see is 15
