Answers

Subtract 25/28 from 28/63

28/63 - 25/28 is -113/252.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 28 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 63 × 4 = 252,
   28/63 = 28 × 4/63 × 4 = 112/252
3. Likewise, for the 2nd fraction, since 28 × 9 = 252,
   25/28 = 25 × 9/28 × 9 = 225/252
4. Subtract the two like fractions:
   112/252 - 225/252 = 112 - 225/252 = -113/252

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