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Subtract 2/8 from 5/84

5/84 - 2/8 is -4/21.

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,
    5/84 = 5 × 2/84 × 2 = 10/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    2/8 = 2 × 21/8 × 21 = 42/168
  4. Subtract the two fractions:
    10/168 - 42/168 = 10 - 42/168 = -32/168
  5. After reducing the fraction, the answer is -4/21

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