Answers

Add 15/84 and 63/4

1^st number: 15/84, 2^nd number: 15 3/4

15/84 + 63/4 is 223/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 4 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 84 × 1 = 84,
   15/84 = 15 × 1/84 × 1 = 15/84
3. Likewise, for the 2nd fraction, since 4 × 21 = 84,
   63/4 = 63 × 21/4 × 21 = 1323/84
4. Add the two like fractions:
   15/84 + 1323/84 = 15 + 1323/84 = 1338/84
5. 1338/84 simplified gives 223/14
6. So, 15/84 + 63/4 = 223/14
   In mixed form: 1513/14

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