Since the number of miles is 790
Since the number of gallons used for these miles is 33 1/3
Then we will divide the number of miles by the number of gallons
to get the number of miles per gallon
790 ÷ 33 1/3
At first, we should change the mixed number to an improper fraction
Then let us divide them by changing the division sign by multiplication sign
and flip the fraction 100/3
Let us multiply 790 by 3, then divide by 100
Then let us divide 2370 by 100
The number of miles per gallon is 23 7/10