Skill: Order fractions

Explanation and Free Practice Resources

Ordering fractions involves determining relative size, including fractions with unlike denominators and mixed numbers, by reasoning with equivalent fractions, common denominators, benchmark values such as 0, 1/2, and 1, or positions on a number line. A larger denominator does not by itself indicate a larger fraction; the scope is positive fractions and mixed numbers, not negative fractions or generalized algebraic methods for ordering rational numbers.

Detailed Explanation: Order fractions

To order fractions, rewrite them so they have the same denominator. Then compare the numerators: with the same denominator, the fraction with the greater numerator is larger.

Example: Order these from least to greatest:

23,34,116,56\frac{2}{3},\quad \frac{3}{4},\quad 1\frac{1}{6},\quad \frac{5}{6}
  1. Change the mixed number into an improper fraction:
116=761\frac{1}{6}=\frac{7}{6}
  1. Find a common denominator. The least common denominator of 33, 44, and 66 is 1212.

  2. Rewrite each fraction with denominator 1212:

23=812\frac{2}{3}=\frac{8}{12} 34=912\frac{3}{4}=\frac{9}{12} 76=1412\frac{7}{6}=\frac{14}{12} 56=1012\frac{5}{6}=\frac{10}{12}
  1. Compare the numerators:
8<9<10<148<9<10<14
  1. Write the fractions in the original form:
23<34<56<116\boxed{\frac{2}{3}<\frac{3}{4}<\frac{5}{6}<1\frac{1}{6}}

Remember: a larger denominator does not automatically mean a larger fraction. Use equivalent fractions or a benchmark such as 11 to compare accurately.

Learn by doing: Order fractions

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Number Types (Rational) - Order - Positive Fractions


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