Pizza Planet's Last Tray

A space café begins lunch with 48 meteor-pizza slices. One crew eats $\frac{1}{4}$ of all the slices. A second crew then eats $\frac{2}{3}$ of what remains.

Starting slices: 48
First crew: Eats $\frac{1}{4}$ of 48
Second crew: Eats $\frac{2}{3}$ of the remainder

Your question

How many pizza slices remain after both crews eat?

Lumi’s answer: “Only 4 slices remain.”

Step 1 of 4

Find the wrong step

Find where the reasoning first breaks

Start with Step 1 and move downward. Choose the first line that stops making sense.

Later lines may be wrong too. Pick the first mistake.

Lumi’s work

These lines form one solution. Read them from top to bottom.

1
The first crew eats $\frac{1}{4}$ × 48 = 12, leaving 36 slices.
2
The second crew eats $\frac{2}{3}$ × 36 = 24 slices.
3
Combine $\frac{1}{4}$ + $\frac{2}{3}$ = $\frac{11}{12}$ and treat both fractions as parts of the original 48.
4
Eleven twelfths of 48 is 44, so 48 − 44 = 4 slices remain.