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Answers.everydaycalculation.com » Compare fractions

Compare 70/20 and 90/8

1st number: 3 10/20, 2nd number: 11 2/8

70/20 is smaller than 90/8

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 8 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 20 × 2 = 40,
    70/20 = 70 × 2/20 × 2 = 140/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    90/8 = 90 × 5/8 × 5 = 450/40
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 140/40 < 450/40 or 70/20 < 90/8

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