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Subtract 10/8 from 20/70

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

20/70 - 10/8 is -27/28.

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,
    10/8 = 10 × 35/8 × 35 = 350/280
  4. Subtract the two fractions:
    80/280 - 350/280 = 80 - 350/280 = -270/280
  5. After reducing the fraction, the answer is -27/28

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