Answers

Add 27/20 and 84/98

1^st number: 1 7/20, 2^nd number: 84/98

27/20 + 84/98 is 309/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 98 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 20 × 49 = 980,
   27/20 = 27 × 49/20 × 49 = 1323/980
3. Likewise, for the 2nd fraction, since 98 × 10 = 980,
   84/98 = 84 × 10/98 × 10 = 840/980
4. Add the two like fractions:
   1323/980 + 840/980 = 1323 + 840/980 = 2163/980
5. 2163/980 simplified gives 309/140
6. So, 27/20 + 84/98 = 309/140
   In mixed form: 229/140

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