Question

What is the L.C.M and H.C.F of 3x5,3x5 square, 3x7

Answer 1

LCM of 3 and 5

Multiples of 3= 3, 6, 9, 12,
Multiples of 5= 5, 10,
Least common multiple (LCM) of 3 and 5= 15

HCF of 3 and 5
Highest common factor (HCF) is calculated using real common factors above

HCF of 3 and 5 = 1