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Compare 5/4 and 21/30

1st number: 1 1/4, 2nd number: 21/30

5/4 is greater than 21/30

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 30 is 60
  2. For the 1st fraction, since 4 × 15 = 60,
    5/4 = 5 × 15/4 × 15 = 75/60
  3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
    21/30 = 21 × 2/30 × 2 = 42/60
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 75/60 > 42/60 or 5/4 > 21/30

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