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Subtract 10/24 from 4/42

4/42 - 10/24 is -9/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 24 is 168
  2. For the 1st fraction, since 42 × 4 = 168,
    4/42 = 4 × 4/42 × 4 = 16/168
  3. Likewise, for the 2nd fraction, since 24 × 7 = 168,
    10/24 = 10 × 7/24 × 7 = 70/168
  4. Subtract the two fractions:
    16/168 - 70/168 = 16 - 70/168 = -54/168
  5. After reducing the fraction, the answer is -9/28

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