LCM by common division
Ex 1:
Find the L.C.M. of 15, 20, 35, 45, and 50.
Sol:
Using common division method, we get:
L.C.M. of 15, 20, 35, 45, and 50 by common division method
∴ Required L.C.M. = 5 × 3 × 2 × 5 × 2 × 7 × 3 = 6300
Ex 2:
Find the L.C.M. of 28, 36, 42, 54, and 60.
Sol:
Using common division method, we get:
L.C.M. of 28, 36, 42, 54, and 60 by common division method
∴ Required L.C.M. = 2 × 2 × 3 × 3 × 3 × 7 × 5 = 3780