Adding and Subtracting Fractions

abbylebus
Note by abbylebus, updated more than 1 year ago
abbylebus
Created by abbylebus about 8 years ago
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Maths (Number) Note on Adding and Subtracting Fractions, created by abbylebus on 05/12/2013.

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Adding and Subtracting FractionsREMEMBER!Only fractions with the same denominator can be added or subtracted.Example:1) Work out 3/5 + 2/3 Find the lowest common denominator of 5 and 3. In this case it's 15. Change the fractions into their equivalent with a denominator of 15. 3   x3     9_    =      _5    x3   152      x5    10_      =       _    3      x5    15Now re-write the sum:9/15 + 10/15 = 19/15 = 1 4/15

Fractions

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