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Subtract 1/84 from 42/8

1st number: 5 2/8, 2nd number: 1/84

42/8 - 1/84 is 110/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 84 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 8 × 21 = 168,
    42/8 = 42 × 21/8 × 21 = 882/168
  3. Likewise, for the 2nd fraction, since 84 × 2 = 168,
    1/84 = 1 × 2/84 × 2 = 2/168
  4. Subtract the two like fractions:
    882/168 - 2/168 = 882 - 2/168 = 880/168
  5. After reducing the fraction, the answer is 110/21
  6. In mixed form: 55/21

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