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Answers.everydaycalculation.com » Compare fractions

Compare 21/40 and 4/20

21/40 is greater than 4/20

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 20 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 40 × 1 = 40,
    21/40 = 21 × 1/40 × 1 = 21/40
  3. Likewise, for the 2nd fraction, since 20 × 2 = 40,
    4/20 = 4 × 2/20 × 2 = 8/40
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 21/40 > 8/40 or 21/40 > 4/20

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