Monday, July 6, 2009

Pre Algebra - Lesson 5: Adding and Subtracting Fractions

BBC Maths:

Concept of a fraction

If we cut a cake into two equal pieces, then eat one of them, we say that we have eaten 1/2 (half) a cake.

Image: circle cut into 5 equal peices If we cut a cake into five equal pieces, then eat three of them, we say that we have eaten 3/5 (three fifths) of a cake.


1/2 and 3/5 are examples of fractions - parts of a whole.

Now practise making your own fractions in the activity below:

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Exercises:
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