Find the HCF of 3/4, 5/6 and 6/7 = ?

Question: Find the HCF of 3/4, 5/6 and 6/7 = ?

Solution:
For the HCF of fractions, it has to be taken the HCF of numerators and LCM denominators.

HCF of 3, 5, 6 = 1
LCM of 4, 6, 7 = 84

HCF of numerators/LCM of denominators = 1/84

Hence, the HCF of 3/4, 5/6 and 6/7 = 1/84