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Subtract 15/54 from 30/8

1st number: 3 6/8, 2nd number: 15/54

30/8 - 15/54 is 125/36.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 54 is 216
  2. For the 1st fraction, since 8 × 27 = 216,
    30/8 = 30 × 27/8 × 27 = 810/216
  3. Likewise, for the 2nd fraction, since 54 × 4 = 216,
    15/54 = 15 × 4/54 × 4 = 60/216
  4. Subtract the two fractions:
    810/216 - 60/216 = 810 - 60/216 = 750/216
  5. After reducing the fraction, the answer is 125/36
  6. In mixed form: 317/36

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