Answers

Add 72/12 and 21/36

1^st number: 6 0/12, 2^nd number: 21/36

72/12 + 21/36 is 79/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 36 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 12 × 3 = 36,
   72/12 = 72 × 3/12 × 3 = 216/36
3. Likewise, for the 2nd fraction, since 36 × 1 = 36,
   21/36 = 21 × 1/36 × 1 = 21/36
4. Add the two like fractions:
   216/36 + 21/36 = 216 + 21/36 = 237/36
5. 237/36 simplified gives 79/12
6. So, 72/12 + 21/36 = 79/12
   In mixed form: 67/12

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