Answers

Add 63/21 and 21/98

1^st number: 3 0/21, 2^nd number: 21/98

63/21 + 21/98 is 45/14.

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,
   63/21 = 63 × 14/21 × 14 = 882/294
3. Likewise, for the 2nd fraction, since 98 × 3 = 294,
   21/98 = 21 × 3/98 × 3 = 63/294
4. Add the two like fractions:
   882/294 + 63/294 = 882 + 63/294 = 945/294
5. 945/294 simplified gives 45/14
6. So, 63/21 + 21/98 = 45/14
   In mixed form: 33/14

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