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Subtract 6/8 from 20/70

20/70 - 6/8 is -13/28.

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,
    20/70 = 20 × 4/70 × 4 = 80/280
  3. Likewise, for the 2nd fraction, since 8 × 35 = 280,
    6/8 = 6 × 35/8 × 35 = 210/280
  4. Subtract the two fractions:
    80/280 - 210/280 = 80 - 210/280 = -130/280
  5. After reducing the fraction, the answer is -13/28

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