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Subtract 5/3 from 81/20

1st number: 4 1/20, 2nd number: 1 2/3

81/20 - 5/3 is 143/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 3 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 20 × 3 = 60,
    81/20 = 81 × 3/20 × 3 = 243/60
  3. Likewise, for the 2nd fraction, since 3 × 20 = 60,
    5/3 = 5 × 20/3 × 20 = 100/60
  4. Subtract the two like fractions:
    243/60 - 100/60 = 243 - 100/60 = 143/60
  5. In mixed form: 223/60

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