Question

What is the difference between lcm.And hcf of 20 30 and 40?

Answer 1

20= 2× 2× 5

30= 2× 3× 5

40= 2× 2×2×5

HCF= 2×5= 10

LCM= 10× 2× 3× 2× 2

     = 60× 4= 240

DIFFERENCE= 240- 10

                   = 230