Answers

Add 30/98 and 81/30

1^st number: 30/98, 2^nd number: 2 21/30

30/98 + 81/30 is 1473/490.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 30 is 1470
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1470
2. For the 1st fraction, since 98 × 15 = 1470,
   30/98 = 30 × 15/98 × 15 = 450/1470
3. Likewise, for the 2nd fraction, since 30 × 49 = 1470,
   81/30 = 81 × 49/30 × 49 = 3969/1470
4. Add the two like fractions:
   450/1470 + 3969/1470 = 450 + 3969/1470 = 4419/1470
5. 4419/1470 simplified gives 1473/490
6. So, 30/98 + 81/30 = 1473/490
   In mixed form: 33/490

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