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Subtract 5/90 from 20/50

20/50 - 5/90 is 31/90.

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,
    20/50 = 20 × 9/50 × 9 = 180/450
  3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
    5/90 = 5 × 5/90 × 5 = 25/450
  4. Subtract the two like fractions:
    180/450 - 25/450 = 180 - 25/450 = 155/450
  5. After reducing the fraction, the answer is 31/90

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