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Everydaycalculation.com » Answers » Compare fractions

Compare 45/9 and 81/7

1st number: 5 0/9, 2nd number: 11 4/7

45/9 is smaller than 81/7

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 7 is 63
  2. For the 1st fraction, since 9 × 7 = 63,
    45/9 = 45 × 7/9 × 7 = 315/63
  3. Likewise, for the 2nd fraction, since 7 × 9 = 63,
    81/7 = 81 × 9/7 × 9 = 729/63
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 315/63 < 729/63 or 45/9 < 81/7

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