Question

find the lcm of 90and 144​

Answer 1

common factor of

90= 2*3*3*5

144= 2*2*2*2*3*3

LCM = 2*2*2*2*3*3*5= 720

Answer 2

Step-by-step explanation:

90=18*5

144=18*8

So hcf =18

So LCM=(90*144)÷18

=90 * 8

=720

( find hcf first by division method then divide the product of the 2 numbers by it. It is simpler)