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Subtract 42/8 from 8/42

1st number: 8/42, 2nd number: 5 2/8

8/42 - 42/8 is -425/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 8 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 42 × 4 = 168,
    8/42 = 8 × 4/42 × 4 = 32/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    42/8 = 42 × 21/8 × 21 = 882/168
  4. Subtract the two like fractions:
    32/168 - 882/168 = 32 - 882/168 = -850/168
  5. After reducing the fraction, the answer is -425/84

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