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2. Cross-multiplication - Wikipedia

   en.wikipedia.org/wiki/Cross-multiplication

   In mathematics, specifically in elementary arithmetic and elementary algebra, given an equation between two fractions or rational expressions, one can cross-multiply to simplify the equation or determine the value of a variable.

3. Unitary method - Wikipedia

   en.wikipedia.org/wiki/Unitary_method

   In elementary algebra, the unitary method is a problem-solving technique taught to students as a method for solving word problems involving proportionality and units of measurement. It consists of first finding the value or proportional amount of a single unit, from the information given in the problem, and then multiplying the result by the ...

4. Extraneous and missing solutions - Wikipedia

   en.wikipedia.org/wiki/Extraneous_and_missing...

   One of the basic principles of algebra is that one can multiply both sides of an equation by the same expression without changing the equation's solutions. However, strictly speaking, this is not true, in that multiplication by certain expressions may introduce new solutions that were not present before. For example, consider the following ...

5. Fraction - Wikipedia

   en.wikipedia.org/wiki/Fraction

   Common fractions are used most often when the denominator is relatively small. By mental calculation, it is easier to multiply 16 by 3/16 than to do the same calculation using the fraction's decimal equivalent (0.1875). And it is more accurate to multiply 15 by 1/3, for example, than it is to multiply 15 by any decimal approximation of one ...

6. Algebraic expression - Wikipedia

   en.wikipedia.org/wiki/Algebraic_expression

   The process of transforming an irrational fraction to a rational fraction is known as rationalization. Every irrational fraction in which the radicals are monomials may be rationalized by finding the least common multiple of the indices of the roots, and substituting the variable for another variable with the least common multiple as exponent.

7. Worksheet - Wikipedia

   en.wikipedia.org/wiki/Worksheet

   The form comes with two worksheets, one to calculate exemptions, and another to calculate the effects of other income (second job, spouse's job). The bottom number in each worksheet is used to fill out two if the lines in the main W4 form. The main form is filed with the employer, and the worksheets are discarded or held by the employee.

8. Wake up the ghosts! Texas, Texas A&M rivalry that dates to ...

   www.aol.com/wake-ghosts-texas-texas-m-214759020.html

   Any Texas or Texas A&M player has heard the lore of the rivalry between the two schools, a grudge match that dates to 1894. Third-ranked Texas (10-1, 6-1) and No. 20 Texas A&M (8-3, 5-2) meet ...

9. Partial fraction decomposition - Wikipedia

   en.wikipedia.org/wiki/Partial_fraction_decomposition

   In algebra, the partial fraction decomposition or partial fraction expansion of a rational fraction (that is, a fraction such that the numerator and the denominator are both polynomials) is an operation that consists of expressing the fraction as a sum of a polynomial (possibly zero) and one or several fractions with a simpler denominator. [1]