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Subtract 64/45 from 63/84

1st number: 63/84, 2nd number: 1 19/45

63/84 - 64/45 is -121/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 45 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 84 × 15 = 1260,
    63/84 = 63 × 15/84 × 15 = 945/1260
  3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
    64/45 = 64 × 28/45 × 28 = 1792/1260
  4. Subtract the two like fractions:
    945/1260 - 1792/1260 = 945 - 1792/1260 = -847/1260
  5. After reducing the fraction, the answer is -121/180

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