Answers

Add 72/63 and 63/12

1^st number: 1 9/63, 2^nd number: 5 3/12

72/63 + 63/12 is 179/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 12 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 63 × 4 = 252,
   72/63 = 72 × 4/63 × 4 = 288/252
3. Likewise, for the 2nd fraction, since 12 × 21 = 252,
   63/12 = 63 × 21/12 × 21 = 1323/252
4. Add the two like fractions:
   288/252 + 1323/252 = 288 + 1323/252 = 1611/252
5. 1611/252 simplified gives 179/28
6. So, 72/63 + 63/12 = 179/28
   In mixed form: 611/28

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