Answers

Add 21/4 and 56/63

1^st number: 5 1/4, 2^nd number: 56/63

21/4 + 56/63 is 221/36.

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,
   21/4 = 21 × 63/4 × 63 = 1323/252
3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
   56/63 = 56 × 4/63 × 4 = 224/252
4. Add the two like fractions:
   1323/252 + 224/252 = 1323 + 224/252 = 1547/252
5. 1547/252 simplified gives 221/36
6. So, 21/4 + 56/63 = 221/36
   In mixed form: 65/36

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