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Subtract 21/9 from 28/2

1st number: 14 0/2, 2nd number: 2 3/9

28/2 - 21/9 is 35/3.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 9 is 18
  2. For the 1st fraction, since 2 × 9 = 18,
    28/2 = 28 × 9/2 × 9 = 252/18
  3. Likewise, for the 2nd fraction, since 9 × 2 = 18,
    21/9 = 21 × 2/9 × 2 = 42/18
  4. Subtract the two fractions:
    252/18 - 42/18 = 252 - 42/18 = 210/18
  5. After reducing the fraction, the answer is 35/3
  6. In mixed form: 112/3

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