Operations with Rational Numbers Math Example 3

Follow the full solution, then compare it with the other examples linked below.

Example 3

easy
Calculate \(\frac{3}{4} - \frac{1}{6}\).

Solution

  1. 1
    LCD of 4 and 6 = 12.
  2. 2
    \(\frac{3}{4} = \frac{9}{12}\), \(\frac{1}{6} = \frac{2}{12}\).
  3. 3
    \(\frac{9}{12} - \frac{2}{12} = \frac{7}{12}\).

Answer

\(\dfrac{7}{12}\)
Convert to LCD=12, then subtract numerators: \(9 - 2 = 7\), giving \(\frac{7}{12}\).

About Operations with Rational Numbers

Extending addition, subtraction, multiplication, and division to the full set of rational numbers—including fractions, decimals, mixed numbers, and their negative counterparts.

Learn more about Operations with Rational Numbers →

More Operations with Rational Numbers Examples

Example 1 easy

Calculate (frac{2}{3} + frac{1}{4}).

Example 2 medium

Calculate (frac{5}{6} times frac{3}{10}) and simplify.

Example 4 medium

Calculate (frac{7}{8} div frac{3}{4}).

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