Answers

Subtract 18/63 from 81/64

1^st number: 1 17/64, 2^nd number: 18/63

81/64 - 18/63 is 439/448.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 63 is 4032
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4032
2. For the 1st fraction, since 64 × 63 = 4032,
   81/64 = 81 × 63/64 × 63 = 5103/4032
3. Likewise, for the 2nd fraction, since 63 × 64 = 4032,
   18/63 = 18 × 64/63 × 64 = 1152/4032
4. Subtract the two like fractions:
   5103/4032 - 1152/4032 = 5103 - 1152/4032 = 3951/4032
5. After reducing the fraction, the answer is 439/448

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