## Algebra: A Combined Approach (4th Edition)

To simplify the fraction, find common factors in the numerator and denominator. Write the numerator and the denominator as products (not sum) of primes. $\frac{12}{24}=\frac{2*2*3}{2*2*2*3}=\frac{1}{2}\times\frac{2*2*3}{2*2*3}=\frac{1}{2}\times\frac{12}{12}=\frac{1}{2}*1=\frac{1}{2}$