Explain with and without an image how to add and subtract related non-unit fractions
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I can explain with and without an image how to add and subtract related non-unit fractions
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You can use knowledge of common multiples to convert fractions to an equivalent with a common denominator.
In equivalent fractions, the numerators and denominators have been scaled up or down by the same factor.
Fractions need to have the same denominator if you are to add and subtract them.
When adding or subtracting fractions with the same denominators you just add or subtract the numerators,
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