Answers

Add 81/40 and 8/98

1^st number: 2 1/40, 2^nd number: 8/98

81/40 + 8/98 is 4129/1960.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 98 is 1960
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1960
2. For the 1st fraction, since 40 × 49 = 1960,
   81/40 = 81 × 49/40 × 49 = 3969/1960
3. Likewise, for the 2nd fraction, since 98 × 20 = 1960,
   8/98 = 8 × 20/98 × 20 = 160/1960
4. Add the two like fractions:
   3969/1960 + 160/1960 = 3969 + 160/1960 = 4129/1960
5. So, 81/40 + 8/98 = 4129/1960
   In mixed form: 2209/1960

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