Answers

Subtract 7/64 from 8/42

8/42 - 7/64 is 109/1344.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 64 is 1344
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1344
2. For the 1st fraction, since 42 × 32 = 1344,
   8/42 = 8 × 32/42 × 32 = 256/1344
3. Likewise, for the 2nd fraction, since 64 × 21 = 1344,
   7/64 = 7 × 21/64 × 21 = 147/1344
4. Subtract the two like fractions:
   256/1344 - 147/1344 = 256 - 147/1344 = 109/1344

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