Answers

Add 7/21 and 8/12

7/21 + 8/12 is 1/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 12 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 21 × 4 = 84,
   7/21 = 7 × 4/21 × 4 = 28/84
3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
   8/12 = 8 × 7/12 × 7 = 56/84
4. Add the two like fractions:
   28/84 + 56/84 = 28 + 56/84 = 84/84
5. 84/84 simplified gives 1/1
6. So, 7/21 + 8/12 = 1/1

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