Answers

Add 20/10 and 81/98

1^st number: 2 0/10, 2^nd number: 81/98

20/10 + 81/98 is 277/98.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 98 is 490
   
   Next, find the equivalent fraction of both fractional numbers with denominator 490
2. For the 1st fraction, since 10 × 49 = 490,
   20/10 = 20 × 49/10 × 49 = 980/490
3. Likewise, for the 2nd fraction, since 98 × 5 = 490,
   81/98 = 81 × 5/98 × 5 = 405/490
4. Add the two like fractions:
   980/490 + 405/490 = 980 + 405/490 = 1385/490
5. 1385/490 simplified gives 277/98
6. So, 20/10 + 81/98 = 277/98
   In mixed form: 281/98

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