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Subtract 84/20 from 8/70

1st number: 8/70, 2nd number: 4 4/20

8/70 - 84/20 is -143/35.

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,
    84/20 = 84 × 7/20 × 7 = 588/140
  4. Subtract the two fractions:
    16/140 - 588/140 = 16 - 588/140 = -572/140
  5. After reducing the fraction, the answer is -143/35

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