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Subtract 81/72 from 50/84

1st number: 50/84, 2nd number: 1 9/72

50/84 - 81/72 is -89/168.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 84 × 6 = 504,
    50/84 = 50 × 6/84 × 6 = 300/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    81/72 = 81 × 7/72 × 7 = 567/504
  4. Subtract the two like fractions:
    300/504 - 567/504 = 300 - 567/504 = -267/504
  5. After reducing the fraction, the answer is -89/168

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