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Subtract 18/24 from 21/50

21/50 - 18/24 is -33/100.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 24 is 600
  2. For the 1st fraction, since 50 × 12 = 600,
    21/50 = 21 × 12/50 × 12 = 252/600
  3. Likewise, for the 2nd fraction, since 24 × 25 = 600,
    18/24 = 18 × 25/24 × 25 = 450/600
  4. Subtract the two fractions:
    252/600 - 450/600 = 252 - 450/600 = -198/600
  5. After reducing the fraction, the answer is -33/100

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