Answer
B) $1\frac{5}{12}$
Work Step by Step
One batch of muffins is 12 muffins and requires $1\frac{1}{4}$ cups of milk.
Use unit fractions to find how much milk is needed.
How many batches of muffins are you making?
$36\ muffins \times\frac{1\ batch}{12\ muffins} =3$ batches
How much milk is required for 3 batches?
$3\ batches\times\frac{1\frac{1}{4}\ cups}{1\ batch}=3\frac{3}{4}$ cups of milk
How much more milk is needed? Subtract the amount you have from the amount needed to find out how much more is needed.
$3\frac{3}{4}-2\frac{1}{3}\longrightarrow$ Convert to like fractions.
$3\frac{3\times3}{4\times3}-2\frac{1\times4}{3\times4}\longrightarrow$ simplify
$3\frac{9}{12}-2\frac{4}{12}\longrightarrow$ subtract
$1\frac{5}{12}$
