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Subtract 80/30 from 21/50

1st number: 21/50, 2nd number: 2 20/30

21/50 - 80/30 is -337/150.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 30 is 150
  2. For the 1st fraction, since 50 × 3 = 150,
    21/50 = 21 × 3/50 × 3 = 63/150
  3. Likewise, for the 2nd fraction, since 30 × 5 = 150,
    80/30 = 80 × 5/30 × 5 = 400/150
  4. Subtract the two fractions:
    63/150 - 400/150 = 63 - 400/150 = -337/150

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