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Subtract 2/9 from 5/7

5/7 - 2/9 is 31/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 9 is 63
  2. For the 1st fraction, since 7 × 9 = 63,
    5/7 = 5 × 9/7 × 9 = 45/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    2/9 = 2 × 7/9 × 7 = 14/63
  4. Subtract the two fractions:
    45/63 - 14/63 = 45 - 14/63 = 31/63

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