Systems of Measurement: example 7.47

How many fluid ounces are in $1$ gallon of milk?

Figure 7.6 (credit: www.bluewaikiki.com, Flickr)

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

Your turn

The book's Try It right after this example: same idea, new numbers. Only the answer is given.

How many cups are in $1$ gallon?

How did it go?

	1 gallon
Multiply the measurement to be converted by 1.	$\frac{1 gal}{1} \cdot \frac{4 qt}{1 gal} \cdot \frac{2 pt}{1 qt} \cdot \frac{2 C}{1 pt} \cdot \frac{8 fl oz}{1 C}$
Simplify.	$\frac{1 gal}{1} \cdot \frac{4 qt}{1 gal} \cdot \frac{2 pt}{1 qt} \cdot \frac{2 C}{1 pt} \cdot \frac{8 fl oz}{1 C}$
Multiply.	$\frac{1 \cdot 4 \cdot 2 \cdot 2 \cdot 8 fl oz}{1 \cdot 1 \cdot 1 \cdot 1 \cdot 1}$
Simplify.	128 fluid ounces
	There are 128 fluid ounces in a gallon.

	1 gallon
Multiply the measurement to be converted by 1.	$\frac{1 gal}{1} \cdot \frac{4 qt}{1 gal} \cdot \frac{2 pt}{1 qt} \cdot \frac{2 C}{1 pt} \cdot \frac{8 fl oz}{1 C}$
Simplify.	$\frac{1 gal}{1} \cdot \frac{4 qt}{1 gal} \cdot \frac{2 pt}{1 qt} \cdot \frac{2 C}{1 pt} \cdot \frac{8 fl oz}{1 C}$
Multiply.	$\frac{1 \cdot 4 \cdot 2 \cdot 2 \cdot 8 fl oz}{1 \cdot 1 \cdot 1 \cdot 1 \cdot 1}$
Simplify.	128 fluid ounces
	There are 128 fluid ounces in a gallon.