Chapter 6.1A, Problem 11A

For each of the following fractions, choose the expression in parentheses that equals or best describes the given fraction.

a. $\frac{0}{0}$ (1, undefined, 0)

b. $\frac{5}{0}$ (undefined, 5, 0)

c. $\frac{0}{5}$ (undefined, 5, 0)

d. $\frac{2+a}{a}$ (2, 3, cannot be simplified)

e. $\frac{15+x}{3x}$ $\left(\frac{5+x}{x},5,\text{ cannot be simplified}\right)$