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Subtract 4/84 from 90/8

1st number: 11 2/8, 2nd number: 4/84

90/8 - 4/84 is 941/84.

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,
    90/8 = 90 × 21/8 × 21 = 1890/168
  3. Likewise, for the 2nd fraction, since 84 × 2 = 168,
    4/84 = 4 × 2/84 × 2 = 8/168
  4. Subtract the two like fractions:
    1890/168 - 8/168 = 1890 - 8/168 = 1882/168
  5. After reducing the fraction, the answer is 941/84
  6. In mixed form: 1117/84

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