Question

Following the formula given below find the L.C.M.
L.C.M. of two numbers =
First number x Second number
H.C.F. of the two numbers
(a) 12, 20
(b) 15,45​

Answer 1

Answer:

(a) 12= 2,2,3

20= 2,2,5

(b) 15=3,5

45=3,3,5

Answer 2

Step by step explanation :

HCF of 12,20

12 = 2*2*3

20 = 2*2*5

HCF is 2*2 = 4

HCF of 15,45

15 = 3*5

45 = 3*3*5

HCF is 3*5= 15