Showing posts with label Fractions. Show all posts
Showing posts with label Fractions. Show all posts
Monday, November 29, 2010
Fraction to decimal conversion
Fraction to decimal conversion can be very confusing. I learned to do this in class this week and it really is not as bad as you may think. This conversion all has to do with where you need to move the decimal to make the problem right. You need to ask yourself: "do I move it to the left or right?" There are many types of fractions you might encounter to convert into decimals. These might include proper fractions, mixed fractions, and improper fractions. http://www.learningwave.com/chapters/decimal13/basics/convert.html You may look at the few examples I provided and look at what I did. Look above. Use this website above to help you.
Fractions and decimals represent the same things. They are numbers that are not whole. Please use this website to help you better understand how to convert fractions to decimals. whole.http://webmath.com/fract2dec.html
Fraction to percentage conversion
Changing fractions to percents is not hard. There are a few simple steps to follow when doing this. First, divide the numberator by the denominator. Next, you need to multiply the fraction by 100. Last, you need to round the answer to the nearest whole number. You may look at the examples I provided. You may also use this website to help you better understand how to convert fractions to percents. http://www.mathgoodies.com/lessons/vol4/fractions_to_percents.html
Let's say we have the problem 1/5. What do we do first? We need to do 1/5, which is .2, now multiply by 100. You should come up with the number 20. Which is also 20%. Great job! Let's do another one. How about 1/8. This comes to .125, now multiply this by 100. You should come up with 12.5%. Did you?
Fraction Addition
There are three simple steps to adding fractions. First, you need to make sure the bottom numbers (the denominators) are the same. Next, add the top numbers (the numerators) and put the answer over the same denominator. Last, simplify the fraction if needed. Let's say we have the problem: 5/8 + 2/8. The top numbers (the numerators) are not the same, but the denominators are the same. So, we just add the top numbers together to get 7/8. Here are some additional examples:
Let's say we have the problem 4/5 + 3/5. What do we do? Well, start off with adding the numerators together to get 7, then put it all together. So, now we have 7/5. Great job! Use this link to help you with adding fractions. It's is a great game to do with your students. http://funschool.kaboose.com/fun-blaster/back-to-school/games/game_action_fraction.html
Let's say we have the problem 4/5 + 3/5. What do we do? Well, start off with adding the numerators together to get 7, then put it all together. So, now we have 7/5. Great job! Use this link to help you with adding fractions. It's is a great game to do with your students. http://funschool.kaboose.com/fun-blaster/back-to-school/games/game_action_fraction.html
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