What is the sum of the GCF and LCM of 5 and 15?

To answer "What is the sum of the GCF and LCM of 5 and 15?", you need to know the GCF of 5 and 15, the LCM of 5 and 15, and the meaning of sum.

The GCF of 5 and 15 means the Greatest Common Factor of 5 and 15 which is 5. The LCM of 5 and 15 means the Least Common Multiple of 5 and 15 which is 15. Sum is the result you get when you add two numbers together.

Now that we have all the pieces, we can calculate the answer to the sum of the GCF and LCM of 5 and 15 as follows:

5 + 15 = 20

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