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Subtract 36/20 from 7/70

1st number: 7/70, 2nd number: 1 16/20

7/70 - 36/20 is -17/10.

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,
    7/70 = 7 × 2/70 × 2 = 14/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    36/20 = 36 × 7/20 × 7 = 252/140
  4. Subtract the two fractions:
    14/140 - 252/140 = 14 - 252/140 = -238/140
  5. After reducing the fraction, the answer is -17/10

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