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Subtract 2/9 from 1/8

1/8 - 2/9 is -7/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 9 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 8 × 9 = 72,
    1/8 = 1 × 9/8 × 9 = 9/72
  3. Likewise, for the 2nd fraction, since 9 × 8 = 72,
    2/9 = 2 × 8/9 × 8 = 16/72
  4. Subtract the two like fractions:
    9/72 - 16/72 = 9 - 16/72 = -7/72

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