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Subtract 6/20 from 8/70

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

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 20 is 140
  2. For the 1st fraction, since 70 × 2 = 140,
    8/70 = 8 × 2/70 × 2 = 16/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    6/20 = 6 × 7/20 × 7 = 42/140
  4. Subtract the two fractions:
    16/140 - 42/140 = 16 - 42/140 = -26/140
  5. After reducing the fraction, the answer is -13/70

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