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Subtract 90/4 from 10/42

1st number: 10/42, 2nd number: 22 2/4

10/42 - 90/4 is -935/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 4 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 42 × 2 = 84,
    10/42 = 10 × 2/42 × 2 = 20/84
  3. Likewise, for the 2nd fraction, since 4 × 21 = 84,
    90/4 = 90 × 21/4 × 21 = 1890/84
  4. Subtract the two like fractions:
    20/84 - 1890/84 = 20 - 1890/84 = -1870/84
  5. After reducing the fraction, the answer is -935/42

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