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Subtract 40/3 from 21/2

1st number: 10 1/2, 2nd number: 13 1/3

21/2 - 40/3 is -17/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 3 is 6

    Next, find the equivalent fraction of both fractional numbers with denominator 6
  2. For the 1st fraction, since 2 × 3 = 6,
    21/2 = 21 × 3/2 × 3 = 63/6
  3. Likewise, for the 2nd fraction, since 3 × 2 = 6,
    40/3 = 40 × 2/3 × 2 = 80/6
  4. Subtract the two like fractions:
    63/6 - 80/6 = 63 - 80/6 = -17/6

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