| Fractions are
written as a number over a number. An example would be 1/2. This means
that 1 is how much there is in a given amount. Example: Suzie ate 1
slice of a pizza. All slices are equal to 1/4. That means that there are
4 equal pieces.
Fractions can be converted into decimals and percents. It's not very hard, you just have to know the basic principles. Fractions can be over different numbers, in fact, any number. Examples: 1/2, 4/5, 55/56. 4/4, 5/5, 6/6, etc, all equal one whole. Imagine there are 12 slices of pizza and Bob eats 12 slices. Therefore he ate 12/12 slices of pizza, or one whole. Converting Fractions to Decimals You can switch around decimals and fractions to show the same number. A number that has a whole number and a fraction is called a mixed number. Let's start out with the fraction 3/4. You divide the numerator by the denominator. You convert the three into a decimal, 3.00. 3.00 divided by 4 = 0.75. Therefore 3/4=0.75.
Now to work with mixed numbers. Let's say the number you have is 5 and 2/3. First divide 2 by 3. Once again, you add zeros after the decimal point. 0.666 3/2.000 - 18 20 - 18 20 - 18 2 5 2/3= 5.666...= 5.6 (6 is repeated)
Converting Fractions to Percents Converting fractions to percents is very simple. Say you have 3/10. Multiply 3 by 10 and 10 by ten making 30/100. This equals 30%. In harder problems like 3/8 there is a different method. You divide the numerator by the denominator once again adding a decimal point and a few zeros. Then multiply the answer by 100 therefore moving the decimal to the right 2 places.
3/8 0.375 8 /3.000
0.375 = 37.5
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Try It Out!!!!!!!!
1.Convert 39/50 into a percent. 2.Convert 3/4 into a decimal and percent. 3.Simplify 1,000,000/2,000,000 . |
1.78%
2.0.75
3. Possible answer: 1/2