Answers

Add 98/21 and 84/28

1^st number: 4 14/21, 2^nd number: 3 0/28

98/21 + 84/28 is 23/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 28 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 21 × 4 = 84,
   98/21 = 98 × 4/21 × 4 = 392/84
3. Likewise, for the 2nd fraction, since 28 × 3 = 84,
   84/28 = 84 × 3/28 × 3 = 252/84
4. Add the two like fractions:
   392/84 + 252/84 = 392 + 252/84 = 644/84
5. 644/84 simplified gives 23/3
6. So, 98/21 + 84/28 = 23/3
   In mixed form: 72/3

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