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Subtract 25/35 from 1/20

1/20 - 25/35 is -93/140.

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,
    1/20 = 1 × 7/20 × 7 = 7/140
  3. Likewise, for the 2nd fraction, since 35 × 4 = 140,
    25/35 = 25 × 4/35 × 4 = 100/140
  4. Subtract the two like fractions:
    7/140 - 100/140 = 7 - 100/140 = -93/140

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