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Subtract 18/7 from 54/8

1st number: 6 6/8, 2nd number: 2 4/7

54/8 - 18/7 is 117/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 7 is 56
  2. For the 1st fraction, since 8 × 7 = 56,
    54/8 = 54 × 7/8 × 7 = 378/56
  3. Likewise, for the 2nd fraction, since 7 × 8 = 56,
    18/7 = 18 × 8/7 × 8 = 144/56
  4. Subtract the two fractions:
    378/56 - 144/56 = 378 - 144/56 = 234/56
  5. After reducing the fraction, the answer is 117/28
  6. In mixed form: 45/28

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