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Subtract 2/9 from 21/2

1st number: 10 1/2, 2nd number: 2/9

21/2 - 2/9 is 185/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 9 is 18

    Next, find the equivalent fraction of both fractional numbers with denominator 18
  2. For the 1st fraction, since 2 × 9 = 18,
    21/2 = 21 × 9/2 × 9 = 189/18
  3. Likewise, for the 2nd fraction, since 9 × 2 = 18,
    2/9 = 2 × 2/9 × 2 = 4/18
  4. Subtract the two like fractions:
    189/18 - 4/18 = 189 - 4/18 = 185/18
  5. In mixed form: 105/18

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