Question

Find the LCM using common division
49 and 63

Answer 1

Answer:

LCM of 49 and 63 is 441.

Step-by-step explanation:

Answer 2

Question-

Find the LCM using common division  49 and 63.

Answer-

LCM of 49 and 63 is 441.

Explanation-

Method 1

Look at the multiples of 49 and 63.

Multiples of 49 = 49, 98, ...,441,490, ...  

Multiples of 63 = 63, 126, ..., 441, 504, ...

We can see, the lowest common multiple of 49 and 63 is 441.

Therefore, LCM of 49 and 63 is 441.

Method 2

We will use the formula of LCM (a, b):

LCM (a, b) = (a × b) / HCF (a, b)

HCF (a, b) is the highest common factor of a and b.

Use this formula to find the LCM of 49 and 63

LCM(49, 63) = (49 × 63) / HCF (49, 63)  

LCM(49, 63) = 3087/7

LCM(49, 63) = 441

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