Question

find comman multiples and hence HCF of 10,15, and 20

Answer 1

Find the LCM of the given no.such 10 = 2×5 15 = 3×5 20 = 2×2×5 Therefore, LCM = 2×3×2×2×5 =120 Common multiple = 120 Now, HCF = 5 ( the common factor is 5)

Answer 2

Find the LCM of the given no.such 10 = 2×5 15 = 3×5 20 = 2×2×5 Therefore, LCM = 2×3×2×2×5 =120 Common multiple = 120 Now, HCF = 5 ( the common factor is 5)