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Answers.everydaycalculation.com » Compare fractions

Compare 70/40 and 80/30

1st number: 1 30/40, 2nd number: 2 20/30

70/40 is smaller than 80/30

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 30 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 40 × 3 = 120,
    70/40 = 70 × 3/40 × 3 = 210/120
  3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
    80/30 = 80 × 4/30 × 4 = 320/120
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 210/120 < 320/120 or 70/40 < 80/30

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