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Answers.everydaycalculation.com » Compare fractions

Compare 21/80 and 2/20

21/80 is greater than 2/20

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 20 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    21/80 = 21 × 1/80 × 1 = 21/80
  3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
    2/20 = 2 × 4/20 × 4 = 8/80
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 21/80 > 8/80 or 21/80 > 2/20

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