Thursday, February 18, 2010

Comparing Fractions

When compare fractions we are seeing if the are the same size or a different size.
We use the signs < (less than) >(greater than) =(equal to)

We have a nice easy trick to doing this.


1/4 is less than, greater than or equal to 2/3


1/4 is < > = 2/3

1/4 2/3 to find out, multiply the denominator of one fraction by the numerator of the other fraction. Do this to both fractions. Put the answer at the top of each fraction.

1/4 and 2/3
multiply 1x3 = 3 put that above 1/4
multiply 4 x 2 = 8 put that above 2/3
now compare 3 and 3
3 is less than 8
SO
1/4 < 2/3
1/4 is less than 2/3
video

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