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Subtract 3/9 from 21/50

21/50 - 3/9 is 13/150.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 9 is 450

    Next, find the equivalent fraction of both fractional numbers with denominator 450
  2. For the 1st fraction, since 50 × 9 = 450,
    21/50 = 21 × 9/50 × 9 = 189/450
  3. Likewise, for the 2nd fraction, since 9 × 50 = 450,
    3/9 = 3 × 50/9 × 50 = 150/450
  4. Subtract the two like fractions:
    189/450 - 150/450 = 189 - 150/450 = 39/450
  5. After reducing the fraction, the answer is 13/150

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