Answers

Add 21/64 and 12/50

21/64 + 12/50 is 909/1600.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 50 is 1600
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1600
2. For the 1st fraction, since 64 × 25 = 1600,
   21/64 = 21 × 25/64 × 25 = 525/1600
3. Likewise, for the 2nd fraction, since 50 × 32 = 1600,
   12/50 = 12 × 32/50 × 32 = 384/1600
4. Add the two like fractions:
   525/1600 + 384/1600 = 525 + 384/1600 = 909/1600
5. So, 21/64 + 12/50 = 909/1600

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