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Subtract 25/18 from 3/8

1st number: 3/8, 2nd number: 1 7/18

3/8 - 25/18 is -73/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 18 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 8 × 9 = 72,
    3/8 = 3 × 9/8 × 9 = 27/72
  3. Likewise, for the 2nd fraction, since 18 × 4 = 72,
    25/18 = 25 × 4/18 × 4 = 100/72
  4. Subtract the two like fractions:
    27/72 - 100/72 = 27 - 100/72 = -73/72

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