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Answers.everydaycalculation.com » Compare fractions

Compare 18/90 and 28/70

18/90 is smaller than 28/70

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 70 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    18/90 = 18 × 7/90 × 7 = 126/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    28/70 = 28 × 9/70 × 9 = 252/630
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 126/630 < 252/630 or 18/90 < 28/70

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