Answers

Add 7/84 and 2/9

7/84 + 2/9 is 11/36.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 9 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 84 × 3 = 252,
   7/84 = 7 × 3/84 × 3 = 21/252
3. Likewise, for the 2nd fraction, since 9 × 28 = 252,
   2/9 = 2 × 28/9 × 28 = 56/252
4. Add the two like fractions:
   21/252 + 56/252 = 21 + 56/252 = 77/252
5. 77/252 simplified gives 11/36
6. So, 7/84 + 2/9 = 11/36

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