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Compare 21/3 and 4/5

1st number: 7 0/3, 2nd number: 4/5

21/3 is greater than 4/5

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 5 is 15
  2. For the 1st fraction, since 3 × 5 = 15,
    21/3 = 21 × 5/3 × 5 = 105/15
  3. Likewise, for the 2nd fraction, since 5 × 3 = 15,
    4/5 = 4 × 3/5 × 3 = 12/15
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 105/15 > 12/15 or 21/3 > 4/5

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