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Answers.everydaycalculation.com » Compare fractions

Compare 20/28 and 30/90

20/28 is greater than 30/90

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 90 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 28 × 45 = 1260,
    20/28 = 20 × 45/28 × 45 = 900/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    30/90 = 30 × 14/90 × 14 = 420/1260
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 900/1260 > 420/1260 or 20/28 > 30/90

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