Answers

Add 90/21 and 63/98

1^st number: 4 6/21, 2^nd number: 63/98

90/21 + 63/98 is 69/14.

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,
   90/21 = 90 × 14/21 × 14 = 1260/294
3. Likewise, for the 2nd fraction, since 98 × 3 = 294,
   63/98 = 63 × 3/98 × 3 = 189/294
4. Add the two like fractions:
   1260/294 + 189/294 = 1260 + 189/294 = 1449/294
5. 1449/294 simplified gives 69/14
6. So, 90/21 + 63/98 = 69/14
   In mixed form: 413/14

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