Answers

Add 42/21 and 49/98

1^st number: 2 0/21, 2^nd number: 49/98

42/21 + 49/98 is 5/2.

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,
   42/21 = 42 × 14/21 × 14 = 588/294
3. Likewise, for the 2nd fraction, since 98 × 3 = 294,
   49/98 = 49 × 3/98 × 3 = 147/294
4. Add the two like fractions:
   588/294 + 147/294 = 588 + 147/294 = 735/294
5. 735/294 simplified gives 5/2
6. So, 42/21 + 49/98 = 5/2
   In mixed form: 21/2

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