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Subtract 80/98 from 50/90

50/90 - 80/98 is -115/441.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 98 is 4410

    Next, find the equivalent fraction of both fractional numbers with denominator 4410
  2. For the 1st fraction, since 90 × 49 = 4410,
    50/90 = 50 × 49/90 × 49 = 2450/4410
  3. Likewise, for the 2nd fraction, since 98 × 45 = 4410,
    80/98 = 80 × 45/98 × 45 = 3600/4410
  4. Subtract the two like fractions:
    2450/4410 - 3600/4410 = 2450 - 3600/4410 = -1150/4410
  5. After reducing the fraction, the answer is -115/441

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