Answers

Add 21/98 and 54/9

1^st number: 21/98, 2^nd number: 6 0/9

21/98 + 54/9 is 87/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 9 is 882
   
   Next, find the equivalent fraction of both fractional numbers with denominator 882
2. For the 1st fraction, since 98 × 9 = 882,
   21/98 = 21 × 9/98 × 9 = 189/882
3. Likewise, for the 2nd fraction, since 9 × 98 = 882,
   54/9 = 54 × 98/9 × 98 = 5292/882
4. Add the two like fractions:
   189/882 + 5292/882 = 189 + 5292/882 = 5481/882
5. 5481/882 simplified gives 87/14
6. So, 21/98 + 54/9 = 87/14
   In mixed form: 63/14

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