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| Math Central | Quandaries & Queries |
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Question from John, a student: I've completely forgot anything to do with the subject mentioned, so my question is straight to the point.. I need to know how to do the following problem (Preferably do not give me an answer though) |
Hi John,
If you want to add 3/7 and 5/6 then you need to first find a common denominator. Since 7 and 6 have no common factors the best common denominator is 7 × 6 = 42. Thus
You can use a similar procedure to add or subtract algebraic fractions. For example
I hope this helps,
Penny
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