Ryan made 104/7 gallons of cider for his party. His guests drank 61/2 gallons in all. About how much cider does Ryan have left?

Question

mathstudent55 · Answer

Are the numbers $ \dfrac{104}{7} $ and $\dfrac{61}{2} $, which is what you wrote,
or are the numbers $ 10 \dfrac{4}{7}$ and $6 \dfrac{1}{2} $ which maybe is what you meant to write?

anonymous · Answer

10 4/7 and 6 1/2

mathstudent55 · Answer

Ok.
You need to subtract two mixed numerals.

1) One way of doing it is to change each mixed numeral into a fraction.
Then you need to rewrite the two fractions with a common denominator.
Then you subtract the fractions.
Then you convert the result to a mixed numeral.

2) The other way of doing it is to leave the numbers as mixed numerals.
Subtract the fraction parts using a common denominator and borrowing if necessary.
Subtract the number parts.

mathstudent55 · Answer

Are you familiar with either method?