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Answers.everydaycalculation.com » Compare fractions

Compare 21/8 and 25/10

1st number: 2 5/8, 2nd number: 2 5/10

21/8 is greater than 25/10

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 10 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 8 × 5 = 40,
    21/8 = 21 × 5/8 × 5 = 105/40
  3. Likewise, for the 2nd fraction, since 10 × 4 = 40,
    25/10 = 25 × 4/10 × 4 = 100/40
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 105/40 > 100/40 or 21/8 > 25/10

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