Answers

Add 21/98 and 8/81

21/98 + 8/81 is 355/1134.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 81 is 7938
   
   Next, find the equivalent fraction of both fractional numbers with denominator 7938
2. For the 1st fraction, since 98 × 81 = 7938,
   21/98 = 21 × 81/98 × 81 = 1701/7938
3. Likewise, for the 2nd fraction, since 81 × 98 = 7938,
   8/81 = 8 × 98/81 × 98 = 784/7938
4. Add the two like fractions:
   1701/7938 + 784/7938 = 1701 + 784/7938 = 2485/7938
5. 2485/7938 simplified gives 355/1134
6. So, 21/98 + 8/81 = 355/1134

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