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Subtract 81/7 from 27/4

1st number: 6 3/4, 2nd number: 11 4/7

27/4 - 81/7 is -135/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 7 is 28
  2. For the 1st fraction, since 4 × 7 = 28,
    27/4 = 27 × 7/4 × 7 = 189/28
  3. Likewise, for the 2nd fraction, since 7 × 4 = 28,
    81/7 = 81 × 4/7 × 4 = 324/28
  4. Subtract the two fractions:
    189/28 - 324/28 = 189 - 324/28 = -135/28

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