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Subtract 3/81 from 7/50

7/50 - 3/81 is 139/1350.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 81 is 4050
  2. For the 1st fraction, since 50 × 81 = 4050,
    7/50 = 7 × 81/50 × 81 = 567/4050
  3. Likewise, for the 2nd fraction, since 81 × 50 = 4050,
    3/81 = 3 × 50/81 × 50 = 150/4050
  4. Subtract the two fractions:
    567/4050 - 150/4050 = 567 - 150/4050 = 417/4050
  5. After reducing the fraction, the answer is 139/1350

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