Answers

Subtract 28/63 from 3/49

3/49 - 28/63 is -169/441.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 63 is 441
   
   Next, find the equivalent fraction of both fractional numbers with denominator 441
2. For the 1st fraction, since 49 × 9 = 441,
   3/49 = 3 × 9/49 × 9 = 27/441
3. Likewise, for the 2nd fraction, since 63 × 7 = 441,
   28/63 = 28 × 7/63 × 7 = 196/441
4. Subtract the two like fractions:
   27/441 - 196/441 = 27 - 196/441 = -169/441

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