Showing posts with label Mixed and Improper Fractions. Show all posts
Showing posts with label Mixed and Improper Fractions. Show all posts

Monday, 28 January 2013

Mixed and Improper Fractions

Mixed fractions are numbers that have a whole and a fraction together. (Ex. 1¼, or 3½). Whereas improper fractions are fractions where the numerator is more than the denominator (Ex. 12/6, 7/2, 10/4) 

To convert a mixed number to an improper, you need to do these steps: 
(Let's say convert 4¼ to an improper fraction)
  •  First, you need to know that the whole would be something like 4/4. So the question is 4 wholes. 
  • Then multiply the wholes by the denominator, that will show you how many there will be. So 4 x 4 = 16. 
Then after you add whatever is left, which is ¼. ¼ + 16 = 17/4. 

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And that is how you convert mixed fractions/numbers to improper fractions.

To convert an improper fraction to a mixed, you can do these steps: 
(The number is...18/4) 
  • Find out how many times the denominator would fit into the number (18), by dividing the numerator by the denominator. (4 wholes,= 16 pieces.)
  • Then, after dividing it. You will see a decimal point after, which means what is left. (Which is 2 in this...) which equals 2/4.
  • Then add the whole and the fraction together. (4+2/4 = 4 2/4) 
  • If, the number ends up being something like 4 2/4, then you have to turn it into lowest terms. With even numbers you just divide it by 2 then continue till you get to lowest terms. (4 1/2 is lowest terms by the way.)


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Apples,
           Janette Inocencio of 7-72

Sunday, 27 January 2013

Math, Review

Hello I see you need help with your fractions. Let me help you with that.

Lets say you add two fractions together and you get a larger numerator than your denominator.
eg. 2/3 + 453 = 7/3
Now if you need to make it not an improper fraction ill show you how to do it.
eg. 3 divided by 7. You'll probably get 1 2/3. How you may ask, well to get this you need to take the remaining number and that becomes your whole number, after that you'll need too take the number that you used to get your remainder or answer, that number would be 2, lastly you need to get the  denominator and well put it as the denominator. and there you have it improper ti mixed numbers.

You could also make to a proper number if you have numbers that go in each other perfectly or smoothly