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You must first find the common denominator and then multiply each fraction by a fraction that will make both denominators the same. In this case, the common denominator is 40. Refer to the related link for more information.


13/8 - 3/5 =

(5/5)(13/8) - (8/8)(3/5) =


65/40 - 24/40 =


41/40


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12y ago

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