Answers

Subtract 63/28 from 45/64

1^st number: 45/64, 2^nd number: 2 7/28

45/64 - 63/28 is -99/64.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 28 is 448
   
   Next, find the equivalent fraction of both fractional numbers with denominator 448
2. For the 1st fraction, since 64 × 7 = 448,
   45/64 = 45 × 7/64 × 7 = 315/448
3. Likewise, for the 2nd fraction, since 28 × 16 = 448,
   63/28 = 63 × 16/28 × 16 = 1008/448
4. Subtract the two like fractions:
   315/448 - 1008/448 = 315 - 1008/448 = -693/448
5. After reducing the fraction, the answer is -99/64

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