Answers

Add 15/4 and 81/63

1^st number: 3 3/4, 2^nd number: 1 18/63

15/4 + 81/63 is 141/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 63 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 4 × 63 = 252,
   15/4 = 15 × 63/4 × 63 = 945/252
3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
   81/63 = 81 × 4/63 × 4 = 324/252
4. Add the two like fractions:
   945/252 + 324/252 = 945 + 324/252 = 1269/252
5. 1269/252 simplified gives 141/28
6. So, 15/4 + 81/63 = 141/28
   In mixed form: 51/28

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