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Subtract 28/75 from 1/20

1/20 - 28/75 is -97/300.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 75 is 300

    Next, find the equivalent fraction of both fractional numbers with denominator 300
  2. For the 1st fraction, since 20 × 15 = 300,
    1/20 = 1 × 15/20 × 15 = 15/300
  3. Likewise, for the 2nd fraction, since 75 × 4 = 300,
    28/75 = 28 × 4/75 × 4 = 112/300
  4. Subtract the two like fractions:
    15/300 - 112/300 = 15 - 112/300 = -97/300

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