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Subtract 40/35 from 30/84

1st number: 30/84, 2nd number: 1 5/35

30/84 - 40/35 is -11/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 35 is 420
  2. For the 1st fraction, since 84 × 5 = 420,
    30/84 = 30 × 5/84 × 5 = 150/420
  3. Likewise, for the 2nd fraction, since 35 × 12 = 420,
    40/35 = 40 × 12/35 × 12 = 480/420
  4. Subtract the two fractions:
    150/420 - 480/420 = 150 - 480/420 = -330/420
  5. After reducing the fraction, the answer is -11/14

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