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Subtract 56/90 from 30/50

30/50 - 56/90 is -1/45.

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,
    30/50 = 30 × 9/50 × 9 = 270/450
  3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
    56/90 = 56 × 5/90 × 5 = 280/450
  4. Subtract the two like fractions:
    270/450 - 280/450 = 270 - 280/450 = -10/450
  5. After reducing the fraction, the answer is -1/45

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