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Subtract 7/8 from 3/70

3/70 - 7/8 is -233/280.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 8 is 280
  2. For the 1st fraction, since 70 × 4 = 280,
    3/70 = 3 × 4/70 × 4 = 12/280
  3. Likewise, for the 2nd fraction, since 8 × 35 = 280,
    7/8 = 7 × 35/8 × 35 = 245/280
  4. Subtract the two fractions:
    12/280 - 245/280 = 12 - 245/280 = -233/280

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