Question

15. If the LCM between a and b is 24, b and c is 60 and c and a is 40. Find the LCM
among a, b and c?
​

Answer 1

Given

• LCM between a and b = 24

• LCM between b and c = 60

• LCM between c and a = 40

To find

• LCM between a , b and c

Solution

• a to b is 24
• b to c is 60
• c to a is 40
• a to b to c will be 24 , 60 , 40

⇾ So, find the LCM of 24,60,40 :-

• 24,60,40 LCM is 120
• 2×2×3×2×5 = 120

∴ LCM among a , b , c is 120