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Subtract 28/8 from 40/14

1st number: 2 12/14, 2nd number: 3 4/8

40/14 - 28/8 is -9/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 8 is 56
  2. For the 1st fraction, since 14 × 4 = 56,
    40/14 = 40 × 4/14 × 4 = 160/56
  3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
    28/8 = 28 × 7/8 × 7 = 196/56
  4. Subtract the two fractions:
    160/56 - 196/56 = 160 - 196/56 = -36/56
  5. After reducing the fraction, the answer is -9/14

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