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Answers.everydaycalculation.com » Compare fractions

Compare 21/20 and 7/27

1st number: 1 1/20, 2nd number: 7/27

21/20 is greater than 7/27

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 27 is 540

    Next, find the equivalent fraction of both fractional numbers with denominator 540
  2. For the 1st fraction, since 20 × 27 = 540,
    21/20 = 21 × 27/20 × 27 = 567/540
  3. Likewise, for the 2nd fraction, since 27 × 20 = 540,
    7/27 = 7 × 20/27 × 20 = 140/540
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 567/540 > 140/540 or 21/20 > 7/27

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