Answers

Subtract 64/63 from 21/24

1^st number: 21/24, 2^nd number: 1 1/63

21/24 - 64/63 is -71/504.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 63 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 24 × 21 = 504,
   21/24 = 21 × 21/24 × 21 = 441/504
3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
   64/63 = 64 × 8/63 × 8 = 512/504
4. Subtract the two like fractions:
   441/504 - 512/504 = 441 - 512/504 = -71/504

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