Question

the lcm of 4 1/2,3 and 10 1/2​

Answer 1

Answer:

Review it, if answer is correct

Step-by-step explanation:

LCM of 4 1/2, 3, 10 1/2 = 63

4 1/2 * 14 = 63

3 * 21 = 63

10 1/2 * 6 = 63

Answer 2

The LCM is 63.

Given: The numbers 4 1/2, 3, and 10 1/2​.

To Find: The LCM of the numbers 4 1/2, 3, and 10 1/2​.

Solution:

• We know that the LCM of fractions can be found by the formula,

        LCM = LCM of numerators / HCF of denominators          ...(1)

Coming to the question, the given numbers are 9/2, 3, and 21/2.

So, from (1), we need to find the LCM of 9, 3, 21

and the HCF of 2, 1, 2.

So writing the prime factorization, we get;

     9 = 3 × 3 × 3

     3 = 3 × 1

    21 = 3 ×7

So, the LCM = 3 × 3 × 7 = 63

HCF = 1

So, putting respective values in (1), we get;

         LCM = LCM of numerators / HCF of denominators      

    ⇒  LCM = 63 / 1

                  = 63

Hence, the LCM is 63.

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