Question

1. (\frac{7\text{ mi}}{\frac{1}{3}\text{ gal}}=\frac{7divsquare}{squaredivsquare}=\frac{7\timessquare}{square\timessquare}=\frac{square}{square}) (square) miles per gallon

Explanation:

Step1: Recall division - fraction rule

$\frac{7}{\frac{1}{3}}=7\div\frac{1}{3}$

Step2: Use division - multiplication conversion

$7\div\frac{1}{3}=7\times3$

Step3: Calculate the result

$7\times3 = 21$

Answer:

$\frac{7\text{ mi}}{\frac{1}{3}\text{ gal}}=\frac{7\div\frac{1}{3}}{1\div1}=\frac{7\times3}{1\times1}=\frac{21}{1}=21$ miles per gallon. So the blanks from left - to - right, top - to - bottom are: $\frac{1}{3}$, $7$, $1$, $\frac{1}{3}$, $7$, $3$, $1$, $21$, $1$, $21$.