Answers

Add 8/21 and 81/98

8/21 + 81/98 is 355/294.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 98 is 294
   
   Next, find the equivalent fraction of both fractional numbers with denominator 294
2. For the 1st fraction, since 21 × 14 = 294,
   8/21 = 8 × 14/21 × 14 = 112/294
3. Likewise, for the 2nd fraction, since 98 × 3 = 294,
   81/98 = 81 × 3/98 × 3 = 243/294
4. Add the two like fractions:
   112/294 + 243/294 = 112 + 243/294 = 355/294
5. So, 8/21 + 81/98 = 355/294
   In mixed form: 161/294

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