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Subtract 98/8 from 40/84

1st number: 40/84, 2nd number: 12 2/8

40/84 - 98/8 is -989/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 8 is 168
  2. For the 1st fraction, since 84 × 2 = 168,
    40/84 = 40 × 2/84 × 2 = 80/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    98/8 = 98 × 21/8 × 21 = 2058/168
  4. Subtract the two fractions:
    80/168 - 2058/168 = 80 - 2058/168 = -1978/168
  5. After reducing the fraction, the answer is -989/84

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