Answers

Add 27/28 and 54/49

1^st number: 27/28, 2^nd number: 1 5/49

27/28 + 54/49 is 405/196.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 49 is 196
   
   Next, find the equivalent fraction of both fractional numbers with denominator 196
2. For the 1st fraction, since 28 × 7 = 196,
   27/28 = 27 × 7/28 × 7 = 189/196
3. Likewise, for the 2nd fraction, since 49 × 4 = 196,
   54/49 = 54 × 4/49 × 4 = 216/196
4. Add the two like fractions:
   189/196 + 216/196 = 189 + 216/196 = 405/196
5. So, 27/28 + 54/49 = 405/196
   In mixed form: 213/196

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