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Subtract 9/24 from 42/84

42/84 - 9/24 is 1/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 24 is 168
  2. For the 1st fraction, since 84 × 2 = 168,
    42/84 = 42 × 2/84 × 2 = 84/168
  3. Likewise, for the 2nd fraction, since 24 × 7 = 168,
    9/24 = 9 × 7/24 × 7 = 63/168
  4. Subtract the two fractions:
    84/168 - 63/168 = 84 - 63/168 = 21/168
  5. After reducing the fraction, the answer is 1/8

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