Pizzas

Billy ate 1 1/4 pizzas and John ate 1 2/3 pizzas. How much more pizza did John eat than Billy?

Correct answer:

x =  0.4167

Step-by-step explanation:

$$\begin{gathered} B=1{\displaystyle \frac{1}{4}}=1+{\displaystyle \frac{1}{4}}={\displaystyle \frac{1\cdot 4+1}{4}}={\displaystyle \frac{5}{4}}=1.25 \\ J=1{\displaystyle \frac{2}{3}}=1+{\displaystyle \frac{2}{3}}={\displaystyle \frac{1\cdot 3+2}{3}}={\displaystyle \frac{5}{3}}\doteq 1.6667 \\ x=J-B=1.6667-1.25={\displaystyle \frac{5}{12}}=0.4167 \end{gathered}$$

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