Question

a. find LCM of 35, 45 and 60 by divison method. b.find HCF of 18,54 and 72 by prime method. ​

Answer 1

Answer:

LCM of 35,45 and 60

5 35, 45, 60

 3 7, 9, 12

     7, 3, 4

LCM = 5×3×7×3×4 = 1260

HCF of 18, 54 and 72

18 = 2×3×3

54 =2×3×3×3

72 =2×3×3×2×2

HCF = 2×3×3 = 18