2. Find the GCF of 88,100 Method 1. List out all factors of each number, and find the first common one. Factors of 88: 1,2,4,8,11,22,44,88 Factors of 100: 1,2,4,5,10,20,25,50,100 Therefore the GCF is 4 Method 2. List all prime factors of each denominator and find the intersection of these primes. Prime factors of 88: 2,2,2,11 Prime factors of 100: 2,2,5,5 2*2=4 Therefore the GCF is 4
3. Divide both the numerator and the denominator by the GCF (88/4)/(100/4)