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Answers.everydaycalculation.com » Compare fractions

Compare 21/10 and 7/15

1st number: 2 1/10, 2nd number: 7/15

21/10 is greater than 7/15

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 15 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 10 × 3 = 30,
    21/10 = 21 × 3/10 × 3 = 63/30
  3. Likewise, for the 2nd fraction, since 15 × 2 = 30,
    7/15 = 7 × 2/15 × 2 = 14/30
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 63/30 > 14/30 or 21/10 > 7/15

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