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Subtract 20/81 from 70/27

1st number: 2 16/27, 2nd number: 20/81

70/27 - 20/81 is 190/81.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 81 is 81

    Next, find the equivalent fraction of both fractional numbers with denominator 81
  2. For the 1st fraction, since 27 × 3 = 81,
    70/27 = 70 × 3/27 × 3 = 210/81
  3. Likewise, for the 2nd fraction, since 81 × 1 = 81,
    20/81 = 20 × 1/81 × 1 = 20/81
  4. Subtract the two like fractions:
    210/81 - 20/81 = 210 - 20/81 = 190/81
  5. In mixed form: 228/81

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