Answers

Add 72/63 and 9/84

1^st number: 1 9/63, 2^nd number: 9/84

72/63 + 9/84 is 5/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 84 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 84 × 3 = 252,
   9/84 = 9 × 3/84 × 3 = 27/252
4. Add the two like fractions:
   288/252 + 27/252 = 288 + 27/252 = 315/252
5. 315/252 simplified gives 5/4
6. So, 72/63 + 9/84 = 5/4
   In mixed form: 11/4

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