Birthday party

Jay brought two pizzas for his birthday party. At the birthday party, they eye 1 4/7 pizzas. What's the fraction of pizzas they have left?

Final Answer:

x =  3/7

Step-by-step explanation:

$$\begin{gathered} a=2 \\ b=1\frac{4}{7}=1+\frac{4}{7}=\frac{1\cdot 7+4}{7}=\frac{7+4}{7}=\frac{11}{7}=1\frac{4}{7}\doteq 1.5714 \\ x=a-b=2-\frac{11}{7}=\frac{2\cdot 7}{7}-\frac{11}{7}=\frac{14}{7}-\frac{11}{7}=\frac{14-11}{7}=\frac{3}{7}=0.4286 \end{gathered}$$

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