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Answers.everydaycalculation.com » Compare fractions

Compare 21/60 and 70/80

21/60 is smaller than 70/80

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 80 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 60 × 4 = 240,
    21/60 = 21 × 4/60 × 4 = 84/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    70/80 = 70 × 3/80 × 3 = 210/240
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 84/240 < 210/240 or 21/60 < 70/80

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