Chicken 7

Each serving uses 2/3 of a pound of chicken. Li Sai has 4 1/2 pounds of chicken. How many servings can Li Sai make if they use all the chicken?

Correct answer:

n =  6

Step-by-step explanation:

$$\begin{gathered} a=\frac{2}{3}\doteq 0.6667\text{lb} \\ b=4\frac{1}{2}=4+\frac{1}{2}=\frac{4\cdot 2+1}{2}=\frac{8+1}{2}=\frac{9}{2}=4\frac{1}{2}=4.5\text{lb} \\ {n}_1=b/a=\frac{9}{2}/\frac{2}{3}=\frac{9}{2}:\frac{2}{3}=\frac{9}{2}\cdot \frac{3}{2}=\frac{9\cdot 3}{2\cdot 2}=\frac{27}{4}=6.75 \\ n=\lfloor n_1\rfloor =\lfloor 6.75\rfloor =6 \end{gathered}$$

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