Saturday, September 11, 2010

Comparing fractions

 In this lesson, we're going to learn about comparing fractions. Comparing fractions are to find out which one is larger or smaller, depends on the fraction. Also it's easy to compare when the denominator is same.

  Our first example is 5/10 and 8/10.
 Now the denominator is same so we have to see the numerator. Now the denominator is same, so we have to compare the numerator. Therefore, 8 is more bigger than 5 so 8/10 is bigger.

  The second example is 4/5 and 5/10.
  Now the denominator is different so we have to make the denominator same. 5 multiplied by 2 equals 10 so the difference between 5 and 10 is 5 so times by 2. Therefore is 8/10. 8 is bigger than 5, then our answer is 4/5 is bigger than 5/10.

  Third and last example is place the following fractions in order from the ascending order.
3/4, 1/2, 5/8.
Now each denominator needs to be 8 to compare easily, so 3/4 = 6/8, 1/2 = 4/8, 5/8 = 5/8.
Therefore the answer is  1/2, 5/8, 3/4.

* Another one is if the question says descending order, it means biggest to smallest.

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