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Subtract 15/8 from 18/35

1st number: 18/35, 2nd number: 1 7/8

18/35 - 15/8 is -381/280.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 8 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 35 × 8 = 280,
    18/35 = 18 × 8/35 × 8 = 144/280
  3. Likewise, for the 2nd fraction, since 8 × 35 = 280,
    15/8 = 15 × 35/8 × 35 = 525/280
  4. Subtract the two like fractions:
    144/280 - 525/280 = 144 - 525/280 = -381/280

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