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Answers.everydaycalculation.com » Compare fractions

Compare 18/10 and 12/42

1st number: 1 8/10, 2nd number: 12/42

18/10 is greater than 12/42

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,
    18/10 = 18 × 21/10 × 21 = 378/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    12/42 = 12 × 5/42 × 5 = 60/210
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 378/210 > 60/210 or 18/10 > 12/42

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