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Algebra is the study of unknown factors (known as variables). Algebraic fractions are fractions with variables in the numerator or denominator, such as 36/x. Others include x2/y or 5x/y3. Since division by 0 is impossible, variables in the denominator have certain restrictions. The denominator can never equal 0. Therefore, in the fractions

36/x . . . x cannot equal 0

x2/y . . . .y cannot equal 0

5x/y3 . . .y cannot equal 0

---- [Edit]

Yes. Also called rational expressions.

An example:

m + 7

----------------------

(m - 6) (m + 2)

so, m-6 cannot equal 0, this means that m cannot equal 6, and

m + 2 cannot equal 0 also, this means that m cannot equal -2

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Q: What are algebraic fractions?
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