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Subtract 84/90 from 4/50

4/50 - 84/90 is -64/75.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 90 is 450

    Next, find the equivalent fraction of both fractional numbers with denominator 450
  2. For the 1st fraction, since 50 × 9 = 450,
    4/50 = 4 × 9/50 × 9 = 36/450
  3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
    84/90 = 84 × 5/90 × 5 = 420/450
  4. Subtract the two like fractions:
    36/450 - 420/450 = 36 - 420/450 = -384/450
  5. After reducing the fraction, the answer is -64/75

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