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Subtract 4/8 from 7/9

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

Steps for subtracting fractions

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

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