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Subtract 70/50 from 30/80

1st number: 30/80, 2nd number: 1 20/50

30/80 - 70/50 is -41/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 50 is 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,
    70/50 = 70 × 8/50 × 8 = 560/400
  4. Subtract the two fractions:
    150/400 - 560/400 = 150 - 560/400 = -410/400
  5. After reducing the fraction, the answer is -41/40

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