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Subtract 4/42 from 3/4

3/4 - 4/42 is 55/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 42 is 84
  2. For the 1st fraction, since 4 × 21 = 84,
    3/4 = 3 × 21/4 × 21 = 63/84
  3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
    4/42 = 4 × 2/42 × 2 = 8/84
  4. Subtract the two fractions:
    63/84 - 8/84 = 63 - 8/84 = 55/84

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