Convert Fraction to Percent
Divide the top of the fraction by the bottom, multiply by 100 and add a "%" sign.
The simplest method is to use a calculator:

Steps:
 Divide the top of the fraction by the bottom,
 Then multiply the result by 100 and read off the answer !

Example: What is ^{5}/_{8} as a percent?
Get your calculator and type in "5 / 8 =", the calculator should show 0.625, then multiply by 100 and your answer is: 62.5% (remember to put the "%" so people know it is "per 100")
Of course you can do the division in your head or on paper if you don't have a calculator!
Another Method
Because percent means "per 100", you can try to convert the fraction to ^{?}/_{100} form.
Follow these steps:
Step 1: Find a number you can multiply by the bottom of the fraction to get 100. 
Step 2: Multiply both top and bottom of the fraction by that number. 
Step 3. Then write down just the top number with the "%" sign. 
Example 1: Express ^{3}/_{4} as a Percent
Step 1: We can multiply 4 by 25 to become 100
Step 2: Multiply top and bottom by 25:
×25 

3 
= 
75 


4 
100 

×25 
Step 3: Write down 75 with the percent sign:
Answer = 75%
Example 2: Express ^{3}/_{16} as a Percent
Step 1: We have to multiply 16 by 6.25 to become 100
Step 2: Multiply top and bottom by 6.25:
×6.25 

3 
= 
18.75 


16 
100 

×6.25 
Step 3: Write down 18.75 with the percentage sign:
Answer = 18.75%
