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Subtract 1/8 from 18/5

1st number: 3 3/5, 2nd number: 1/8

18/5 - 1/8 is 139/40.

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,
    18/5 = 18 × 8/5 × 8 = 144/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    1/8 = 1 × 5/8 × 5 = 5/40
  4. Subtract the two fractions:
    144/40 - 5/40 = 144 - 5/40 = 139/40
  5. In mixed form: 319/40

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