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Answers.everydaycalculation.com » Compare fractions

Compare 1/5 and 21/20

1st number: 1/5, 2nd number: 1 1/20

1/5 is smaller than 21/20

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 20 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 5 × 4 = 20,
    1/5 = 1 × 4/5 × 4 = 4/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    21/20 = 21 × 1/20 × 1 = 21/20
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 4/20 < 21/20 or 1/5 < 21/20

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