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Percents<br />
Finding what percent one number is of another is a similar problem that can be<br />
solved by writing the problem as a proportion. Notice the difference in the way<br />
this problem is written as a proportion.<br />
Follow this example: What percent of 45 is 9<br />
1. Write the unknown percent as a fraction, using x to stand for the unknown.<br />
X% = x/100.<br />
2. Use the fraction to write the problem as a proportion.<br />
3. Cross multiply.<br />
4. 9 is 20% of 45<br />
Let’s try this one: 48 is 16% of what number<br />
1. Write the percent as a fraction. 16% =16/100.<br />
2. Use the fraction to write the problem as a<br />
proportion.<br />
72 72<br />
<strong>Simply</strong> <strong>Math</strong> Workbook<br />
NWT Literacy Council
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