Answers

Add 25/21 and 54/98

1^st number: 1 4/21, 2^nd number: 54/98

25/21 + 54/98 is 256/147.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 98 is 294
   
   Next, find the equivalent fraction of both fractional numbers with denominator 294
2. For the 1st fraction, since 21 × 14 = 294,
   25/21 = 25 × 14/21 × 14 = 350/294
3. Likewise, for the 2nd fraction, since 98 × 3 = 294,
   54/98 = 54 × 3/98 × 3 = 162/294
4. Add the two like fractions:
   350/294 + 162/294 = 350 + 162/294 = 512/294
5. 512/294 simplified gives 256/147
6. So, 25/21 + 54/98 = 256/147
   In mixed form: 1109/147

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