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Subtract 49/16 from 7/42

1st number: 7/42, 2nd number: 3 1/16

7/42 - 49/16 is -139/48.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 16 is 336

    Next, find the equivalent fraction of both fractional numbers with denominator 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,
    49/16 = 49 × 21/16 × 21 = 1029/336
  4. Subtract the two like fractions:
    56/336 - 1029/336 = 56 - 1029/336 = -973/336
  5. After reducing the fraction, the answer is -139/48

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