Question

Determine the LCM of the numbers given below : 42, 63​

Answer 1

Answer:

126

Step-by-step explanation:

You can find it out in another simple process.

1) Check the largest of all numbers.

2) Check whether the largest number is divisible by all other numbers.

3) Check which one of the multiples of the largest number is divisible by other numbers. That is your answer.

Here,

63 is the largest number.

63 is not divisible by 42.

But, 63×2=126 is divisible by 42.

So, 126 is your answer.

Answer 2

Step-by-step explanation:

42 = 2 ✖ 3 ✖ 7

63 = 3 KI power 2 ✖ 7

LCM(42,63) = 2 KI power 2 ✖ 3 KI power 2 ✖ 7

LCM (42,63) = 2✖ 9 ✖ 7

= 18 ✖ 7

= 126

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