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Subtract 3/10 from 5/7

5/7 - 3/10 is 29/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 10 is 70
  2. For the 1st fraction, since 7 × 10 = 70,
    5/7 = 5 × 10/7 × 10 = 50/70
  3. Likewise, for the 2nd fraction, since 10 × 7 = 70,
    3/10 = 3 × 7/10 × 7 = 21/70
  4. Subtract the two fractions:
    50/70 - 21/70 = 50 - 21/70 = 29/70

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