Question

which is the largest 2-digit number that is a common multiple of 6 and 15

Answer 1

Answer:

The Least Common multiple of 15 and 6 is 30.

so other multiple will be 30, 60, 90,120…

we can see that the largest two digit number is 90.

so the largest possible value for the common multiple of 15 and 6 is 90.

Answer 2

The largest two digit number which is common multiple of 6 and 15 is 90.