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Answers.everydaycalculation.com » Compare fractions

Compare 42/20 and 42/72

1st number: 2 2/20, 2nd number: 42/72

42/20 is greater than 42/72

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 20 × 18 = 360,
    42/20 = 42 × 18/20 × 18 = 756/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    42/72 = 42 × 5/72 × 5 = 210/360
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 756/360 > 210/360 or 42/20 > 42/72

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