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Answers.everydaycalculation.com » Compare fractions

Compare 42/2 and 20/8

1st number: 21 0/2, 2nd number: 2 4/8

42/2 is greater than 20/8

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 8 is 8

    Next, find the equivalent fraction of both fractional numbers with denominator 8
  2. For the 1st fraction, since 2 × 4 = 8,
    42/2 = 42 × 4/2 × 4 = 168/8
  3. Likewise, for the 2nd fraction, since 8 × 1 = 8,
    20/8 = 20 × 1/8 × 1 = 20/8
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 168/8 > 20/8 or 42/2 > 20/8

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