Answers

Subtract 54/56 from 56/63

56/63 - 54/56 is -19/252.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 56 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 63 × 8 = 504,
   56/63 = 56 × 8/63 × 8 = 448/504
3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
   54/56 = 54 × 9/56 × 9 = 486/504
4. Subtract the two like fractions:
   448/504 - 486/504 = 448 - 486/504 = -38/504
5. After reducing the fraction, the answer is -19/252

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