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Answers.everydaycalculation.com » Compare fractions

Compare 90/12 and 21/5

1st number: 7 6/12, 2nd number: 4 1/5

90/12 is greater than 21/5

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 5 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 12 × 5 = 60,
    90/12 = 90 × 5/12 × 5 = 450/60
  3. Likewise, for the 2nd fraction, since 5 × 12 = 60,
    21/5 = 21 × 12/5 × 12 = 252/60
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 450/60 > 252/60 or 90/12 > 21/5

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