Question

Abhajy gunankhand vidhi dwara nimnlikhit ka HCF tatha LCM gyat kijiye : (a)15 or 12 (b)18 or 45

Answer 1

SOLUTION:

(a) 15 and 12

15= 3×5

12= 2×2×3

LCM= 2×2×3×5=60

HCF= 3

(b) 18 and 45

18=2×3×3

45=3×3×5

LCM=2×3×3×5=90

HCF= 3×3 =9