There was only 5/12 of a pizza left. Carl then ate 1/6 of the remaining pizza. How much of the pizza was left?
\(\frac{5}{12} - \frac{1}{6} = \frac{5}{12} - \frac{2}{12} = \frac{3}{12} = \frac{1}{4}\)
\(\frac{1}{4}\) of the pizza was left
3/12 is the answer because carl ate 1/6 (equivalent to 2/12) you just take away 2/12 from 5/12