Answers

Add 45/98 and 81/20

1^st number: 45/98, 2^nd number: 4 1/20

45/98 + 81/20 is 4419/980.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 20 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 98 × 10 = 980,
   45/98 = 45 × 10/98 × 10 = 450/980
3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
   81/20 = 81 × 49/20 × 49 = 3969/980
4. Add the two like fractions:
   450/980 + 3969/980 = 450 + 3969/980 = 4419/980
5. So, 45/98 + 81/20 = 4419/980
   In mixed form: 4499/980

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