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Answers.everydaycalculation.com » Compare fractions

Compare 12/10 and 30/42

1st number: 1 2/10, 2nd number: 30/42

12/10 is greater than 30/42

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 10 × 21 = 210,
    12/10 = 12 × 21/10 × 21 = 252/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    30/42 = 30 × 5/42 × 5 = 150/210
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 252/210 > 150/210 or 12/10 > 30/42

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