Answers

Subtract 4/64 from 2/42

2/42 - 4/64 is -5/336.

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,
   2/42 = 2 × 32/42 × 32 = 64/1344
3. Likewise, for the 2nd fraction, since 64 × 21 = 1344,
   4/64 = 4 × 21/64 × 21 = 84/1344
4. Subtract the two like fractions:
   64/1344 - 84/1344 = 64 - 84/1344 = -20/1344
5. After reducing the fraction, the answer is -5/336

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