Answers

Subtract 21/60 from 4/63

4/63 - 21/60 is -361/1260.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 60 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 63 × 20 = 1260,
   4/63 = 4 × 20/63 × 20 = 80/1260
3. Likewise, for the 2nd fraction, since 60 × 21 = 1260,
   21/60 = 21 × 21/60 × 21 = 441/1260
4. Subtract the two like fractions:
   80/1260 - 441/1260 = 80 - 441/1260 = -361/1260

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