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Subtract 42/27 from 27/80

1st number: 27/80, 2nd number: 1 15/27

27/80 - 42/27 is -877/720.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 27 is 2160
  2. For the 1st fraction, since 80 × 27 = 2160,
    27/80 = 27 × 27/80 × 27 = 729/2160
  3. Likewise, for the 2nd fraction, since 27 × 80 = 2160,
    42/27 = 42 × 80/27 × 80 = 3360/2160
  4. Subtract the two fractions:
    729/2160 - 3360/2160 = 729 - 3360/2160 = -2631/2160
  5. After reducing the fraction, the answer is -877/720

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