30=12+18, rewrite 12+18 using their GCF and multiplication
GCF(12,18)=6, not 3
To rewrite 12 and 18 using their greatest common factor (GCF) and multiplication, we need to find the GCF of 12 and 18 first.
Step 1: Find the factors of each number.
The factors of 12 are: 1, 2, 3, 4, 6, and 12.
The factors of 18 are: 1, 2, 3, 6, 9, and 18.
Step 2: Identify the greatest common factor.
From the factors listed above, we can see that the GCF of 12 and 18 is 6, as it is the highest common factor they share.
Step 3: Rewrite the sum using the GCF and multiplication.
Now, we can rewrite 12 and 18 using their GCF and multiplication.
12 = 6 * 2
18 = 6 * 3
Therefore, 12 + 18 can be rewritten as (6 * 2) + (6 * 3).