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Answers.everydaycalculation.com » Compare fractions

Compare 72/4 and 80/7

1st number: 18 0/4, 2nd number: 11 3/7

72/4 is greater than 80/7

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 7 is 28

    Next, find the equivalent fraction of both fractional numbers with denominator 28
  2. For the 1st fraction, since 4 × 7 = 28,
    72/4 = 72 × 7/4 × 7 = 504/28
  3. Likewise, for the 2nd fraction, since 7 × 4 = 28,
    80/7 = 80 × 4/7 × 4 = 320/28
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 504/28 > 320/28 or 72/4 > 80/7

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