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Subtract 1/8 from 90/5

1st number: 18 0/5, 2nd number: 1/8

90/5 - 1/8 is 143/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 8 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 5 × 8 = 40,
    90/5 = 90 × 8/5 × 8 = 720/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    1/8 = 1 × 5/8 × 5 = 5/40
  4. Subtract the two like fractions:
    720/40 - 5/40 = 720 - 5/40 = 715/40
  5. After reducing the fraction, the answer is 143/8
  6. In mixed form: 177/8

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