Question

Find HCF of 1/2,2/3,3/4,4/5

Answer 1

2,3,4,5
1,3,2,5
1×3×2×5
30 is the HCF

Answer 2

HCF of { 1/2 , 2/3 , 3/4 , 4/5 } = HCF of { 1 , 2, 3 , 4 }/ LCM of { 2 , 3 , 4 , 5 }

HCF of { 1, 2, 3 , 4 , } = common factor of { 1, 2, 3 , 4 } = 1

LCM of { 2 , 3 , 4 , 5} = 4 × 5 × 3 = 60

so, HCF = 1/60 ( answer )