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Answers.everydaycalculation.com » Compare fractions

Compare 21/6 and 15/80

1st number: 3 3/6, 2nd number: 15/80

21/6 is greater than 15/80

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 80 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 6 × 40 = 240,
    21/6 = 21 × 40/6 × 40 = 840/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    15/80 = 15 × 3/80 × 3 = 45/240
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 840/240 > 45/240 or 21/6 > 15/80

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