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Subtract 9/8 from 18/36

1st number: 18/36, 2nd number: 1 1/8

18/36 - 9/8 is -5/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 8 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 36 × 2 = 72,
    18/36 = 18 × 2/36 × 2 = 36/72
  3. Likewise, for the 2nd fraction, since 8 × 9 = 72,
    9/8 = 9 × 9/8 × 9 = 81/72
  4. Subtract the two like fractions:
    36/72 - 81/72 = 36 - 81/72 = -45/72
  5. After reducing the fraction, the answer is -5/8

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