Question

The difference between the LCM and HCF of 42 and 84 is?

Answer 1

Answer:

Multiples of 42: 42, 84, 126, 168, 210, 252, etc. Multiples of 84: 84, 168, 252, 336, 420, 504, etc. The least multiple on the two lists that they have in common is the LCM of 42 and 84. Therefore, the LCM of 42 and 84 is 84.

Answer 2

Answer:

LCM IS LOWEST COMMON MULTIPLY AND HCF IS HEIGHT COMMON FRICTION AND NOW LCM OF 42 IS 2,3,7

LCM OF 84 IS 2,2,3,7 and IN THIS COMMON MULTIPLE IS 2

AND IN HCF COMMOM FRICTION IS 7