|Jamit Fractions - Lesson Contents|
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Lesson 10: Some Applications of Fractions.
FINDING A FRACTION OF A QUANTITY
Finding a fraction of a quantity is a very popular exam question.
REMEMBER: The word OF in fractions' maths means MULTIPLY.
Sometimes you will
need to change a larger unit into a smaller unit.
WRITING ONE QUANTITY AS A FRACTION OF ANOTHER QUANTITY
This question is easy to answer if you understand the concept of a fraction and what the numerator and denominator is.
What fraction is 15 minutes of 1 hour?
We first change 1 hour to 60 minutes.
How can you tell which quantity to write as a numerator and which one
as a dominator?
In the example above the whole object was 1 hour, or 60 minutes.
Express 45 cm as a fraction of 1 m.
The whole object is 1 m, or 100 cm.
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