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Subtract 10/54 from 81/70

1st number: 1 11/70, 2nd number: 10/54

81/70 - 10/54 is 1837/1890.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 54 is 1890

    Next, find the equivalent fraction of both fractional numbers with denominator 1890
  2. For the 1st fraction, since 70 × 27 = 1890,
    81/70 = 81 × 27/70 × 27 = 2187/1890
  3. Likewise, for the 2nd fraction, since 54 × 35 = 1890,
    10/54 = 10 × 35/54 × 35 = 350/1890
  4. Subtract the two like fractions:
    2187/1890 - 350/1890 = 2187 - 350/1890 = 1837/1890

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