Question

Find the HCF of 9/12,18/21,
10/25, 35/40

Answer 1

Step-by-step explanation:

HCF of fraction = (HCF of numerator)/(LCM of denominator)

h.c.f of (9,18,10,35) is

9 = 1×3×3

18 = 1×3×6

10 = 1×2×5

35 = 1×5×7

HCF = 1

LCM(12,21,25,40) is

12 = 2×2×3

21 = 3×7

25 = 5×5

40 = 2×2×2×5

LCM = 2×2×2×3×5×5×7 = 4200

HCF of fraction = 1/4200