Question

If LCM of 12 and 42 is 10m+4 find m

Answer 1

we know that the lcm of 12 and 48 is 84
so atq
84=10m+4
80=10m
8=m

Answer 2

lcm of 42 and 12 is 84 so, 10m + 4 = 84
= 8 so, the required answer is 8