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Subtract 15/54 from 50/42

1st number: 1 8/42, 2nd number: 15/54

50/42 - 15/54 is 115/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 54 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 42 × 9 = 378,
    50/42 = 50 × 9/42 × 9 = 450/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    15/54 = 15 × 7/54 × 7 = 105/378
  4. Subtract the two like fractions:
    450/378 - 105/378 = 450 - 105/378 = 345/378
  5. After reducing the fraction, the answer is 115/126

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