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Compare 21/4 and 7/15

1st number: 5 1/4, 2nd number: 7/15

21/4 is greater than 7/15

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 15 is 60
  2. For the 1st fraction, since 4 × 15 = 60,
    21/4 = 21 × 15/4 × 15 = 315/60
  3. Likewise, for the 2nd fraction, since 15 × 4 = 60,
    7/15 = 7 × 4/15 × 4 = 28/60
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 315/60 > 28/60 or 21/4 > 7/15

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