The bird

The bird feeder holds 1 and 1/2 cups of birdseed. Reagan is using a scoop that holds 1/8 of a cup. How many scoops will she need to fill the bird feeder?

Correct answer:

n =  12

Step-by-step explanation:

$$\begin{gathered} f=1\frac{1}{2}=1+\frac{1}{2}=\frac{1\cdot 2+1}{2}=\frac{2+1}{2}=\frac{3}{2}=1\frac{1}{2}=1.5\text{c} \\ s=\frac{1}{8}=0.125\text{c} \\ n=f/s=\frac{3}{2}/\frac{1}{8}=\frac{3}{2}:\frac{1}{8}=\frac{3}{2}\cdot \frac{8}{1}=\frac{3\cdot 8}{2\cdot 1}=\frac{24}{2}=12 \end{gathered}$$

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