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Subtract 75/50 from 30/80

1st number: 30/80, 2nd number: 1 25/50

30/80 - 75/50 is -9/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 50 is 400

    Next, find the equivalent fraction of both fractional numbers with denominator 400
  2. For the 1st fraction, since 80 × 5 = 400,
    30/80 = 30 × 5/80 × 5 = 150/400
  3. Likewise, for the 2nd fraction, since 50 × 8 = 400,
    75/50 = 75 × 8/50 × 8 = 600/400
  4. Subtract the two like fractions:
    150/400 - 600/400 = 150 - 600/400 = -450/400
  5. After reducing the fraction, the answer is -9/8

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