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Subtract 30/27 from 21/4

1st number: 5 1/4, 2nd number: 1 3/27

21/4 - 30/27 is 149/36.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 27 is 108

    Next, find the equivalent fraction of both fractional numbers with denominator 108
  2. For the 1st fraction, since 4 × 27 = 108,
    21/4 = 21 × 27/4 × 27 = 567/108
  3. Likewise, for the 2nd fraction, since 27 × 4 = 108,
    30/27 = 30 × 4/27 × 4 = 120/108
  4. Subtract the two like fractions:
    567/108 - 120/108 = 567 - 120/108 = 447/108
  5. After reducing the fraction, the answer is 149/36
  6. In mixed form: 45/36

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