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Subtract 54/80 from 42/14

1st number: 3 0/14, 2nd number: 54/80

42/14 - 54/80 is 93/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 14 × 40 = 560,
    42/14 = 42 × 40/14 × 40 = 1680/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    54/80 = 54 × 7/80 × 7 = 378/560
  4. Subtract the two like fractions:
    1680/560 - 378/560 = 1680 - 378/560 = 1302/560
  5. After reducing the fraction, the answer is 93/40
  6. In mixed form: 213/40

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