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That depends what operation you need to do: you have to learn separately how to add and subtract, multiply, divide, simplify, and expand fractions. Since this is a rather long topic, I suggest you review your school books, or check some online resources. See the related links for one of them.

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Q: How do you do operations involving fractions?
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How would decide what to do first when solving an equation involving fractions?

Eradicate the fractions.


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No, Roman numerals were not designed to represent fractions. They are mainly used for whole numbers and are not suitable for precise mathematical calculations involving fractions. For fractions, it is best to use decimal or fractional notation.


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you should use addition in a problem involving fractions if you see key words that mean to add, for example sum increase, altogether, etc


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