Converting decimals into fractions:
When converting a decimal into a fraction, all the numbers in front of the decimal becomes "1." Normally, there would be one number or place holder in front of the decimal. Then, the rest of the numbers after the decimal becomes "0." This will be the denominator. Lastly, you put the rest of the numbers that are behind the decimal on top of the denominator and you'll get the fraction.
Converting decimals into percents:
Converting a decimal into a percent is very easy just like converting fractions into decimals. You just multiply the decimal by a hundred to get the percent.
Converting fractions into decimals:
Converting a fraction into a decimal is very simple. You just simply divide the numerator by the denominator.
Converting fractions into a percent:
Converting a fraction into a percent is kind of complicated than the rest. Some fractions are easy to covert to a percent. Those are the fractions with "100" as their denominator. Other fractions include one more step; you have to find the decimal. To find the decimal, you need to divide the numerator by the denominator. When you find the decimal, you just multiply it by a hundred to get the percent.
Converting percents into fractions:Like converting a fraction into a percent, converting a percent into a fraction has one more step to it. Some percents you may know how to convert into a fraction just like that. Examples are 50%, 25%, 100%, 75%, 20%, etc. However, there are percents that are harder to convert into a fraction. So, in order to do this, you have to find the decimal. For you to find the decimal, you divide it by a hundred. When you find the decimal then you can use the "decimal into a fraction" technique.
Here are the examples we did today in class.
Here is a video about decimals, fractions and percents. I put this video of guys rapping about decimals, fractions and percents because i thought that the other videos are boring. So enjoy!
Now, here is a link to a math site.