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Answers.everydaycalculation.com » Compare fractions

Compare 70/20 and 90/72

1st number: 3 10/20, 2nd number: 1 18/72

70/20 is greater than 90/72

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 20 × 18 = 360,
    70/20 = 70 × 18/20 × 18 = 1260/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    90/72 = 90 × 5/72 × 5 = 450/360
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 1260/360 > 450/360 or 70/20 > 90/72

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