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Subtract 9/54 from 42/15

1st number: 2 12/15, 2nd number: 9/54

42/15 - 9/54 is 79/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 54 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 15 × 18 = 270,
    42/15 = 42 × 18/15 × 18 = 756/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    9/54 = 9 × 5/54 × 5 = 45/270
  4. Subtract the two like fractions:
    756/270 - 45/270 = 756 - 45/270 = 711/270
  5. After reducing the fraction, the answer is 79/30
  6. In mixed form: 219/30

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