Answers

Add 20/84 and 2/12

20/84 + 2/12 is 17/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 12 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 84 × 1 = 84,
   20/84 = 20 × 1/84 × 1 = 20/84
3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
   2/12 = 2 × 7/12 × 7 = 14/84
4. Add the two like fractions:
   20/84 + 14/84 = 20 + 14/84 = 34/84
5. 34/84 simplified gives 17/42
6. So, 20/84 + 2/12 = 17/42

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