Answers

Subtract 15/64 from 21/50

21/50 - 15/64 is 297/1600.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 64 is 1600
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1600
2. For the 1st fraction, since 50 × 32 = 1600,
   21/50 = 21 × 32/50 × 32 = 672/1600
3. Likewise, for the 2nd fraction, since 64 × 25 = 1600,
   15/64 = 15 × 25/64 × 25 = 375/1600
4. Subtract the two like fractions:
   672/1600 - 375/1600 = 672 - 375/1600 = 297/1600

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