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Simplify: (x+2)/x - 1/(3xy)

Mathematics

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Answer

3xy+6y−13xy\frac{3xy + 6y - 1}{3xy}

Step-by-step solution

4 steps
  1. Find the least common multiple (LCM) of the denominators.

    The denominators are xx and 3xy3xy. The LCM of xx and 3xy3xy is 3xy3xy.

  2. Rewrite each fraction with the common denominator.

    To change x+2x\frac{x+2}{x} to have a denominator of 3xy3xy, multiply the numerator and denominator by 3y3y.

    x+2x=(x+2)⋅3yx⋅3y=3y(x+2)3xy\frac{x+2}{x} = \frac{(x+2) \cdot 3y}{x \cdot 3y} = \frac{3y(x+2)}{3xy}

    The second fraction, 13xy\frac{1}{3xy}, already has the common denominator.

  3. Subtract the fractions.

    3y(x+2)3xy−13xy=3y(x+2)−13xy\frac{3y(x+2)}{3xy} - \frac{1}{3xy} = \frac{3y(x+2) - 1}{3xy}
  4. Expand the numerator and simplify.

    3xy+6y−13xy\frac{3xy + 6y - 1}{3xy}

    The expression cannot be simplified further.

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