Answers

Add 84/21 and 16/98

1^st number: 4 0/21, 2^nd number: 16/98

84/21 + 16/98 is 204/49.

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,
   84/21 = 84 × 14/21 × 14 = 1176/294
3. Likewise, for the 2nd fraction, since 98 × 3 = 294,
   16/98 = 16 × 3/98 × 3 = 48/294
4. Add the two like fractions:
   1176/294 + 48/294 = 1176 + 48/294 = 1224/294
5. 1224/294 simplified gives 204/49
6. So, 84/21 + 16/98 = 204/49
   In mixed form: 48/49

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