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 Depdendent Variable

 Number of equations to solve: 23456789
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 Dependent Variable

 Number of inequalities to solve: 23456789
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# Adding and Subtracting Fractions without a Common Denominator

Example 6

Subtract The LCD is 18(x + 4)

multiply to get an LCD of multiply to get an LCD of   subtract the numerators over the LCD distrubte the – combine like terms in the numerator Example 7

Subtract factor each denominator The LCD is 3x(x −2)

multiply to get an LCD of multiply to get an LCD of   subtract the numerators over the LCD distrubte the – combine like terms in the numerator Example 8

Subtract The LCD is (x −1)(x −2)

multiply to get an LCD of multiply to get an LCD of   subtract the numerators over the LCD distrubte the – combine like terms in the numerator Factor the numerator Does not reduce

Example 9

Subtract factor each denominator The LCD is 6(x +1)(x −1)

multiply to get an LCD of multiply to get an LCD of   subtract the numerators over the LCD distrubte the – combine like terms in the numerator 