Answers

Add 28/21 and 75/64

1^st number: 1 7/21, 2^nd number: 1 11/64

28/21 + 75/64 is 481/192.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 64 is 1344
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1344
2. For the 1st fraction, since 21 × 64 = 1344,
   28/21 = 28 × 64/21 × 64 = 1792/1344
3. Likewise, for the 2nd fraction, since 64 × 21 = 1344,
   75/64 = 75 × 21/64 × 21 = 1575/1344
4. Add the two like fractions:
   1792/1344 + 1575/1344 = 1792 + 1575/1344 = 3367/1344
5. 3367/1344 simplified gives 481/192
6. So, 28/21 + 75/64 = 481/192
   In mixed form: 297/192

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