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Subtract 81/56 from 50/84

1st number: 50/84, 2nd number: 1 25/56

50/84 - 81/56 is -143/168.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 56 is 168
  2. For the 1st fraction, since 84 × 2 = 168,
    50/84 = 50 × 2/84 × 2 = 100/168
  3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
    81/56 = 81 × 3/56 × 3 = 243/168
  4. Subtract the two fractions:
    100/168 - 243/168 = 100 - 243/168 = -143/168

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