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Subtract 10/7 from 7/10

1st number: 7/10, 2nd number: 1 3/7

7/10 - 10/7 is -51/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 7 is 70
  2. For the 1st fraction, since 10 × 7 = 70,
    7/10 = 7 × 7/10 × 7 = 49/70
  3. Likewise, for the 2nd fraction, since 7 × 10 = 70,
    10/7 = 10 × 10/7 × 10 = 100/70
  4. Subtract the two fractions:
    49/70 - 100/70 = 49 - 100/70 = -51/70

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