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Answers.everydaycalculation.com » Compare fractions

Compare 7/90 and 21/75

7/90 is smaller than 21/75

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 75 is 450

    Next, find the equivalent fraction of both fractional numbers with denominator 450
  2. For the 1st fraction, since 90 × 5 = 450,
    7/90 = 7 × 5/90 × 5 = 35/450
  3. Likewise, for the 2nd fraction, since 75 × 6 = 450,
    21/75 = 21 × 6/75 × 6 = 126/450
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 35/450 < 126/450 or 7/90 < 21/75

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