Answers

Add 54/98 and 35/20

1^st number: 54/98, 2^nd number: 1 15/20

54/98 + 35/20 is 451/196.

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,
   54/98 = 54 × 10/98 × 10 = 540/980
3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
   35/20 = 35 × 49/20 × 49 = 1715/980
4. Add the two like fractions:
   540/980 + 1715/980 = 540 + 1715/980 = 2255/980
5. 2255/980 simplified gives 451/196
6. So, 54/98 + 35/20 = 451/196
   In mixed form: 259/196

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