Question

Ex= 10.1
List the multiples of 10, 20, 30.
Encircle the common multiples and find
the LCM​

Answer 1

Answer:

2×2×5×3

=4×15

=60

Therefore the LCM is 60

Answer 2

Multiples of 10 = 10,20,30,40,50,60,70,80,90,100..

Multiples of 20 = 20,40,60,80,100,120,140,160,180..

Multiples of 30 = 30,60,90,120,150,180,210,240...

Here we can see that 60 is the least common multiple ...

Therefore, LCM of 10,20,30 = 60...

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