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Answers.everydaycalculation.com » Compare fractions

Compare 21/4 and 2/10

1st number: 5 1/4, 2nd number: 2/10

21/4 is greater than 2/10

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 10 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 4 × 5 = 20,
    21/4 = 21 × 5/4 × 5 = 105/20
  3. Likewise, for the 2nd fraction, since 10 × 2 = 20,
    2/10 = 2 × 2/10 × 2 = 4/20
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 105/20 > 4/20 or 21/4 > 2/10

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