Question

Find the GCF from the two numbers, and rewrite the sum using the distributive property.

18-12=.

Answer 1

ab+ac=a(b+c)

where a is the greatest common factor

find gcf of each

factor each

18=2*3*3

12=2*2*3

GCF=2*3=6

so

18+12=6(3)+6(2)=6(3+2)

Explanation: