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Subtract 63/80 from 18/35

18/35 - 63/80 is -153/560.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 35 × 16 = 560,
    18/35 = 18 × 16/35 × 16 = 288/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    63/80 = 63 × 7/80 × 7 = 441/560
  4. Subtract the two like fractions:
    288/560 - 441/560 = 288 - 441/560 = -153/560

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