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Subtract 1/54 from 50/42

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

50/42 - 1/54 is 443/378.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 54 is 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,
    1/54 = 1 × 7/54 × 7 = 7/378
  4. Subtract the two fractions:
    450/378 - 7/378 = 450 - 7/378 = 443/378
  5. In mixed form: 165/378

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