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Subtract 9/36 from 21/50

21/50 - 9/36 is 17/100.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 36 is 900
  2. For the 1st fraction, since 50 × 18 = 900,
    21/50 = 21 × 18/50 × 18 = 378/900
  3. Likewise, for the 2nd fraction, since 36 × 25 = 900,
    9/36 = 9 × 25/36 × 25 = 225/900
  4. Subtract the two fractions:
    378/900 - 225/900 = 378 - 225/900 = 153/900
  5. After reducing the fraction, the answer is 17/100

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