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Subtract 27/35 from 27/20

1st number: 1 7/20, 2nd number: 27/35

27/20 - 27/35 is 81/140.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 35 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    27/20 = 27 × 7/20 × 7 = 189/140
  3. Likewise, for the 2nd fraction, since 35 × 4 = 140,
    27/35 = 27 × 4/35 × 4 = 108/140
  4. Subtract the two like fractions:
    189/140 - 108/140 = 189 - 108/140 = 81/140

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