What are reciprocals?
Two numbers whose quotient is $1$1.
Two numbers whose difference is $1$1.
Two numbers whose sum is $1$1.
Two numbers whose product is $1$1.
Find the reciprocal of $\frac{13}{4}$134.
Find the reciprocal of $\frac{3}{11}$311. Write the answer as an improper fraction.
Find the reciprocal of $\frac{1}{5}$15.