Answers

Add 4/45 and 21/64

4/45 + 21/64 is 1201/2880.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 64 is 2880
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2880
2. For the 1st fraction, since 45 × 64 = 2880,
   4/45 = 4 × 64/45 × 64 = 256/2880
3. Likewise, for the 2nd fraction, since 64 × 45 = 2880,
   21/64 = 21 × 45/64 × 45 = 945/2880
4. Add the two like fractions:
   256/2880 + 945/2880 = 256 + 945/2880 = 1201/2880
5. So, 4/45 + 21/64 = 1201/2880

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