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Subtract 70/72 from 4/75

4/75 - 70/72 is -827/900.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 72 is 1800
  2. For the 1st fraction, since 75 × 24 = 1800,
    4/75 = 4 × 24/75 × 24 = 96/1800
  3. Likewise, for the 2nd fraction, since 72 × 25 = 1800,
    70/72 = 70 × 25/72 × 25 = 1750/1800
  4. Subtract the two fractions:
    96/1800 - 1750/1800 = 96 - 1750/1800 = -1654/1800
  5. After reducing the fraction, the answer is -827/900

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