The homework for today is to correct last night's homework. We spent time going over how to convert between fractions, decimals, and percents. In case you want to know, here is a quick guide so you can help your child. Fractions are really division problems. Divide the top number by the bottom number and use a decimal if necessary (when you don't come out with a whole number answer). You have just converted a fraction to a decimal. For instance, 3/4, when you divide 3 by 4, becomes 0.75, which is seventy-five hundredths. Since percents are "over one hundred" and 0.75 is seventy-five one hundredths, the percent conversion is easy to do from the decimal number. It would be 75/100 or 75%. Notice that I moved the decimal two places to the right to go from the 0.75 to 75%. In order to use a percent in a math problem, the percent has to be changed to a decimal by moving the decimal point the opposite way, or two places to the left. For instance, if you wanted to know how much you will save off of a coat worth $150 at an 45% discount, you change the 45% to 0.45 and multiply it by $150. To change a percent to a fraction, just put it over 100 or 1000 if there are three numbers after the decimal point. If you are converting 12 1/4% to a fraction, remember that the decimal starts after the whole numbers - 12, and 1/4 % ("and" means the decimal point goes here). Change the 1/4 to .25, then you have 12.25%. After you have gotten to that form, you just move the decimal point two places to the left for form a decimal number rather than a percent (12 1/4%) and you have 0.1225!!
I hope this has been helpful.
Mrs. W
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