Chapter 4 - Section 4.2 - Factors and Simplest Form - Exercise Set - Page 236: 68

a) $\frac{2}{15}$ are in New Mexico b) 65 are outside New Mexico c) $\frac{13}{15}$ are outside New Mexico

a) $\frac{part}{whole}=\frac{10}{75}=\frac{10\div5}{75\div5}=\frac{2}{15}$ b) $75-10=65$ c) $\frac{part}{whole}=\frac{65}{75}=\frac{65\div5}{75\div5}=\frac{13}{15}$