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Subtract 63/28 from 54/40

1st number: 1 14/40, 2nd number: 2 7/28

54/40 - 63/28 is -9/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 28 is 280
  2. For the 1st fraction, since 40 × 7 = 280,
    54/40 = 54 × 7/40 × 7 = 378/280
  3. Likewise, for the 2nd fraction, since 28 × 10 = 280,
    63/28 = 63 × 10/28 × 10 = 630/280
  4. Subtract the two fractions:
    378/280 - 630/280 = 378 - 630/280 = -252/280
  5. After reducing the fraction, the answer is -9/10

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