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Subtract 7/16 from 7/42

7/42 - 7/16 is -13/48.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 16 is 336
  2. For the 1st fraction, since 42 × 8 = 336,
    7/42 = 7 × 8/42 × 8 = 56/336
  3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
    7/16 = 7 × 21/16 × 21 = 147/336
  4. Subtract the two fractions:
    56/336 - 147/336 = 56 - 147/336 = -91/336
  5. After reducing the fraction, the answer is -13/48

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