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Answers.everydaycalculation.com » Compare fractions

Compare 45/15 and 72/12

1st number: 3 0/15, 2nd number: 6 0/12

45/15 is smaller than 72/12

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 12 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 15 × 4 = 60,
    45/15 = 45 × 4/15 × 4 = 180/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    72/12 = 72 × 5/12 × 5 = 360/60
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 180/60 < 360/60 or 45/15 < 72/12

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