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Subtract 9/6 from 30/40

1st number: 30/40, 2nd number: 1 3/6

30/40 - 9/6 is -3/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 6 is 120
  2. For the 1st fraction, since 40 × 3 = 120,
    30/40 = 30 × 3/40 × 3 = 90/120
  3. Likewise, for the 2nd fraction, since 6 × 20 = 120,
    9/6 = 9 × 20/6 × 20 = 180/120
  4. Subtract the two fractions:
    90/120 - 180/120 = 90 - 180/120 = -90/120
  5. After reducing the fraction, the answer is -3/4

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