Answers

Add 15/84 and 27/8

1^st number: 15/84, 2^nd number: 3 3/8

15/84 + 27/8 is 199/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 8 is 168
2. For the 1st fraction, since 84 × 2 = 168,
   15/84 = 15 × 2/84 × 2 = 30/168
3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
   27/8 = 27 × 21/8 × 21 = 567/168
4. Add the two fractions:
   30/168 + 567/168 = 30 + 567/168 = 597/168
5. 597/168 simplified gives 199/56
6. So, 15/84 + 27/8 = 199/56
   In mixed form: 331/56

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