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Subtract 5/81 from 3/70

3/70 - 5/81 is -107/5670.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 81 is 5670

    Next, find the equivalent fraction of both fractional numbers with denominator 5670
  2. For the 1st fraction, since 70 × 81 = 5670,
    3/70 = 3 × 81/70 × 81 = 243/5670
  3. Likewise, for the 2nd fraction, since 81 × 70 = 5670,
    5/81 = 5 × 70/81 × 70 = 350/5670
  4. Subtract the two like fractions:
    243/5670 - 350/5670 = 243 - 350/5670 = -107/5670

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