Answers

Add 72/21 and 8/36

1^st number: 3 9/21, 2^nd number: 8/36

72/21 + 8/36 is 230/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 36 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 21 × 12 = 252,
   72/21 = 72 × 12/21 × 12 = 864/252
3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
   8/36 = 8 × 7/36 × 7 = 56/252
4. Add the two like fractions:
   864/252 + 56/252 = 864 + 56/252 = 920/252
5. 920/252 simplified gives 230/63
6. So, 72/21 + 8/36 = 230/63
   In mixed form: 341/63

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