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Answers.everydaycalculation.com » Compare fractions

Compare 21/12 and 56/42

1st number: 1 9/12, 2nd number: 1 14/42

21/12 is greater than 56/42

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 42 is 84
  2. For the 1st fraction, since 12 × 7 = 84,
    21/12 = 21 × 7/12 × 7 = 147/84
  3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
    56/42 = 56 × 2/42 × 2 = 112/84
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 147/84 > 112/84 or 21/12 > 56/42

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