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Subtract 9/8 from 1/5

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

1/5 - 9/8 is -37/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 8 is 40
  2. For the 1st fraction, since 5 × 8 = 40,
    1/5 = 1 × 8/5 × 8 = 8/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    9/8 = 9 × 5/8 × 5 = 45/40
  4. Subtract the two fractions:
    8/40 - 45/40 = 8 - 45/40 = -37/40

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