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Subtract 2/10 from 81/2

1st number: 40 1/2, 2nd number: 2/10

81/2 - 2/10 is 403/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 10 is 10

    Next, find the equivalent fraction of both fractional numbers with denominator 10
  2. For the 1st fraction, since 2 × 5 = 10,
    81/2 = 81 × 5/2 × 5 = 405/10
  3. Likewise, for the 2nd fraction, since 10 × 1 = 10,
    2/10 = 2 × 1/10 × 1 = 2/10
  4. Subtract the two like fractions:
    405/10 - 2/10 = 405 - 2/10 = 403/10
  5. In mixed form: 403/10

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