Answers

Add 2/8 and 2/21

2/8 + 2/21 is 29/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 21 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 8 × 21 = 168,
   2/8 = 2 × 21/8 × 21 = 42/168
3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
   2/21 = 2 × 8/21 × 8 = 16/168
4. Add the two like fractions:
   42/168 + 16/168 = 42 + 16/168 = 58/168
5. 58/168 simplified gives 29/84
6. So, 2/8 + 2/21 = 29/84

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