Answers

Subtract 42/63 from 35/64

35/64 - 42/63 is -23/192.

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,
   35/64 = 35 × 63/64 × 63 = 2205/4032
3. Likewise, for the 2nd fraction, since 63 × 64 = 4032,
   42/63 = 42 × 64/63 × 64 = 2688/4032
4. Subtract the two like fractions:
   2205/4032 - 2688/4032 = 2205 - 2688/4032 = -483/4032
5. After reducing the fraction, the answer is -23/192

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