Answers

Add 27/28 and 21/8

1^st number: 27/28, 2^nd number: 2 5/8

27/28 + 21/8 is 201/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 8 is 56
   
   Next, find the equivalent fraction of both fractional numbers with denominator 56
2. For the 1st fraction, since 28 × 2 = 56,
   27/28 = 27 × 2/28 × 2 = 54/56
3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
   21/8 = 21 × 7/8 × 7 = 147/56
4. Add the two like fractions:
   54/56 + 147/56 = 54 + 147/56 = 201/56
5. So, 27/28 + 21/8 = 201/56
   In mixed form: 333/56

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