Answers

Subtract 4/20 from 49/64

49/64 - 4/20 is 181/320.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 20 is 320
   
   Next, find the equivalent fraction of both fractional numbers with denominator 320
2. For the 1st fraction, since 64 × 5 = 320,
   49/64 = 49 × 5/64 × 5 = 245/320
3. Likewise, for the 2nd fraction, since 20 × 16 = 320,
   4/20 = 4 × 16/20 × 16 = 64/320
4. Subtract the two like fractions:
   245/320 - 64/320 = 245 - 64/320 = 181/320

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