Answers

Subtract 21/64 from 49/75

49/75 - 21/64 is 1561/4800.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 64 is 4800
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4800
2. For the 1st fraction, since 75 × 64 = 4800,
   49/75 = 49 × 64/75 × 64 = 3136/4800
3. Likewise, for the 2nd fraction, since 64 × 75 = 4800,
   21/64 = 21 × 75/64 × 75 = 1575/4800
4. Subtract the two like fractions:
   3136/4800 - 1575/4800 = 3136 - 1575/4800 = 1561/4800

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