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Compare 21/18 and 5/80

1st number: 1 3/18, 2nd number: 5/80

21/18 is greater than 5/80

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,
    21/18 = 21 × 40/18 × 40 = 840/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    5/80 = 5 × 9/80 × 9 = 45/720
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 840/720 > 45/720 or 21/18 > 5/80

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