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Answers.everydaycalculation.com » Compare fractions

Compare 8/21 and 4/45

8/21 is greater than 4/45

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 45 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 21 × 15 = 315,
    8/21 = 8 × 15/21 × 15 = 120/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    4/45 = 4 × 7/45 × 7 = 28/315
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 120/315 > 28/315 or 8/21 > 4/45

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