Wednesday Oct 07, 2009

Ordering fractions

This spread will show you how to: Compare and order fractions by rewriting them with a common denominator Keywords: -Ascending -Common denominator -Denominator -Descending -Least common multiple (LCM) -Numerator The least common multiple (LCM) is the lowest number that two (or more) numbers will divide into exactly Ascending- is going up Descending- is going down In the fraction 2/5 The top number, 2, is the numerator The bottom number, 5, is the denominator The common denominator of 2/5 and 5/12 is 60, the LCM of 5 and 12 (the original denominators) To compare two or more fractions: 1) Find the common denominator  2) Work out the equivalent fractions  3) Write the fractions in ascending or descending order

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