Question

Find LCM of 3/4, 4/6 and 5/8:
1. 5/16
2. 60
3. 30
4. 120

Answer 1

Correct Answer - Option 3 : 30

Given:

Numbers 3/4, 4/6 and 5/8

Formula used:

LCM of fraction = LCM of Numerators/HCF of Denominators

 

Calculation:

LCM of Numerators

⇒ LCM(3, 4, 5) = 60

HCF of Denominators

⇒ HCF(4, 6, 8) = 2

⇒ LCM (3/4, 4/6, 5/8) = 60/2

⇒ LCM (3/4, 4/6, 5/8) = 30

∴ LCM of 3/4, 4/6 and 5/8 is 30.