Help! How do I set up this equation..is over of?

Hi Kristin,

To figure out what the percent of a certain number is you have to first convert that percent into a decimal and then multiply that by the number. First, understand that another way of writing 6 and 1/2% is also 6.5% (This is because .5 is equal to 1/2). To convert 6.5% into decimals we just move the decimal place to the left twice making it .065. We then turn this decimal into a fraction. This is easy once we remember that .065 is equal to 65/1000. We then reduce this number to 13/200. Finally we multiply this number by 400. So the equation then becomes 13/200 x 400. This then simplifies to 13 x 2 which equals 26. So 6 and 1/2% of 400 is 26. Hope that helps.

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