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Subtract 7/9 from 4/8

4/8 - 7/9 is -5/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 9 is 72
  2. For the 1st fraction, since 8 × 9 = 72,
    4/8 = 4 × 9/8 × 9 = 36/72
  3. Likewise, for the 2nd fraction, since 9 × 8 = 72,
    7/9 = 7 × 8/9 × 8 = 56/72
  4. Subtract the two fractions:
    36/72 - 56/72 = 36 - 56/72 = -20/72
  5. After reducing the fraction, the answer is -5/18

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