Answers

Add 8/21 and 12/5

1^st number: 8/21, 2^nd number: 2 2/5

8/21 + 12/5 is 292/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 5 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 21 × 5 = 105,
   8/21 = 8 × 5/21 × 5 = 40/105
3. Likewise, for the 2nd fraction, since 5 × 21 = 105,
   12/5 = 12 × 21/5 × 21 = 252/105
4. Add the two like fractions:
   40/105 + 252/105 = 40 + 252/105 = 292/105
5. So, 8/21 + 12/5 = 292/105
   In mixed form: 282/105

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