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Answers.everydaycalculation.com » Compare fractions

Compare 42/10 and 15/20

1st number: 4 2/10, 2nd number: 15/20

42/10 is greater than 15/20

Steps for comparing fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 10 × 2 = 20,
    42/10 = 42 × 2/10 × 2 = 84/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    15/20 = 15 × 1/20 × 1 = 15/20
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 84/20 > 15/20 or 42/10 > 15/20

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