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Subtract 27/35 from 81/4

1st number: 20 1/4, 2nd number: 27/35

81/4 - 27/35 is 2727/140.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 35 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 4 × 35 = 140,
    81/4 = 81 × 35/4 × 35 = 2835/140
  3. Likewise, for the 2nd fraction, since 35 × 4 = 140,
    27/35 = 27 × 4/35 × 4 = 108/140
  4. Subtract the two like fractions:
    2835/140 - 108/140 = 2835 - 108/140 = 2727/140
  5. In mixed form: 1967/140

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