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Answers.everydaycalculation.com » Compare fractions

Compare 45/72 and 84/40

1st number: 45/72, 2nd number: 2 4/40

45/72 is smaller than 84/40

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 40 is 360
  2. For the 1st fraction, since 72 × 5 = 360,
    45/72 = 45 × 5/72 × 5 = 225/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    84/40 = 84 × 9/40 × 9 = 756/360
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 225/360 < 756/360 or 45/72 < 84/40

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