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Answers.everydaycalculation.com » Compare fractions

Compare 10/18 and 42/80

10/18 is greater than 42/80

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 80 is 720
  2. For the 1st fraction, since 18 × 40 = 720,
    10/18 = 10 × 40/18 × 40 = 400/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    42/80 = 42 × 9/80 × 9 = 378/720
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 400/720 > 378/720 or 10/18 > 42/80

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