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Subtract 63/40 from 75/63

1st number: 1 12/63, 2nd number: 1 23/40

75/63 - 63/40 is -323/840.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 40 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 63 × 40 = 2520,
    75/63 = 75 × 40/63 × 40 = 3000/2520
  3. Likewise, for the 2nd fraction, since 40 × 63 = 2520,
    63/40 = 63 × 63/40 × 63 = 3969/2520
  4. Subtract the two like fractions:
    3000/2520 - 3969/2520 = 3000 - 3969/2520 = -969/2520
  5. After reducing the fraction, the answer is -323/840

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