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OLga [1]
3 years ago
6

Rewrite the following expression 15+21 using the GCF and the distributive property

Mathematics
2 answers:
saul85 [17]3 years ago
7 0

Answer:

3(5+7)

Step-by-step explanation:

We are asked to rewrite 15+21 using the GCF and the distributive property.

We know that greatest common factor of 15 and 21 is 3.

15=3\times 5 and 21=3\times 7.

We can rewrite our given expression as:

3\times 5+3\times 7

Now, we will factor out 3 from our expression as:

3(5+7)

Therefore, after rewriting our given expression using the GCF and the distributive property we will get 3(5+7).

avanturin [10]3 years ago
3 0
First, we want to find the GCF of 15 and 21, which is 3. Now we do 15 divided by 3 and 21 divided by 3, which gives us 5 and 7. To rewrite the expression, we take the GCF and put it on the outside of the parenthesis. Inside the parenthesis, we put 5 + 7. So it'll look like this:

3(5 + 7)
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