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Subtract 21/6 from 9/3

1st number: 3 0/3, 2nd number: 3 3/6

9/3 - 21/6 is -1/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 6 is 6

    Next, find the equivalent fraction of both fractional numbers with denominator 6
  2. For the 1st fraction, since 3 × 2 = 6,
    9/3 = 9 × 2/3 × 2 = 18/6
  3. Likewise, for the 2nd fraction, since 6 × 1 = 6,
    21/6 = 21 × 1/6 × 1 = 21/6
  4. Subtract the two like fractions:
    18/6 - 21/6 = 18 - 21/6 = -3/6
  5. After reducing the fraction, the answer is -1/2

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