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Subtract 5/54 from 90/7

1st number: 12 6/7, 2nd number: 5/54

90/7 - 5/54 is 4825/378.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 54 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 7 × 54 = 378,
    90/7 = 90 × 54/7 × 54 = 4860/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    5/54 = 5 × 7/54 × 7 = 35/378
  4. Subtract the two like fractions:
    4860/378 - 35/378 = 4860 - 35/378 = 4825/378
  5. In mixed form: 12289/378

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