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Answers.everydaycalculation.com » Compare fractions

Compare 70/45 and 18/80

1st number: 1 25/45, 2nd number: 18/80

70/45 is greater than 18/80

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 45 × 16 = 720,
    70/45 = 70 × 16/45 × 16 = 1120/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    18/80 = 18 × 9/80 × 9 = 162/720
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 1120/720 > 162/720 or 70/45 > 18/80

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