Answers

Add 30/36 and 80/21

1^st number: 30/36, 2^nd number: 3 17/21

30/36 + 80/21 is 65/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 21 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 36 × 7 = 252,
   30/36 = 30 × 7/36 × 7 = 210/252
3. Likewise, for the 2nd fraction, since 21 × 12 = 252,
   80/21 = 80 × 12/21 × 12 = 960/252
4. Add the two like fractions:
   210/252 + 960/252 = 210 + 960/252 = 1170/252
5. 1170/252 simplified gives 65/14
6. So, 30/36 + 80/21 = 65/14
   In mixed form: 49/14

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