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Answers.everydaycalculation.com » Compare fractions

Compare 21/12 and 2/80

1st number: 1 9/12, 2nd number: 2/80

21/12 is greater than 2/80

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 80 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 12 × 20 = 240,
    21/12 = 21 × 20/12 × 20 = 420/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    2/80 = 2 × 3/80 × 3 = 6/240
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 420/240 > 6/240 or 21/12 > 2/80

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