Answer:
1/9 of a gallon of sauce
Explanation:
You would have to divide the fraction (1/3) by the number of pizzas (3)
but…
you can’t DIVIDE fractions, so you have to use the “keep-change-flip“ method
1/3 ÷ 3
keep 1/3
change ÷ into ×
and flip 3 into 1/3 (because technically 3 is 3/1)
1/3×1/3= 1/9
hope this helped!