Conversion
We know that 1 gal is equivalent to 4 qt. We want to find how many gallons correspond to 55 qt:
?? gal ⇔ 55 qt
1 gal ⇔ 4 qt
We know that if we divide both sides of the equivalence we will have the same result:
Then, we have an equation for the number of gallons:
Then, we have that
55/4 gal ⇔ 55 qt
Since 52/4 = 13
and 52 + 3 = 55, then
Then, we have that
55/4 gal = 13 +3 /4 gal
or
55/4 gal = 13 gal 3 quarters
Answer: 55 gal = 13 gal 3 qt