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Subtract 10/8 from 21/6

1st number: 3 3/6, 2nd number: 1 2/8

21/6 - 10/8 is 9/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 8 is 24

    Next, find the equivalent fraction of both fractional numbers with denominator 24
  2. For the 1st fraction, since 6 × 4 = 24,
    21/6 = 21 × 4/6 × 4 = 84/24
  3. Likewise, for the 2nd fraction, since 8 × 3 = 24,
    10/8 = 10 × 3/8 × 3 = 30/24
  4. Subtract the two like fractions:
    84/24 - 30/24 = 84 - 30/24 = 54/24
  5. After reducing the fraction, the answer is 9/4
  6. In mixed form: 21/4

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