10) The GCF of a set of numbers is the largest number that divides into both numbers.
The GCF of 24 and 36 is 12.
15) [tex]\frac{30}{54}[/tex] can be simplified by dividing the top (numerator) and the bottom (denominator) by the GCF. The GCF of 30 and 54 is 6. The new fraction is [tex]\frac{6}{9}[/tex] . 6/9
20) The GCF of [tex]\frac{55}{88}[/tex] is 11. The new fraction is [tex]\frac{5}{8}[/tex] . 5/8
