Answers

Add 4/21 and 98/15

1^st number: 4/21, 2^nd number: 6 8/15

4/21 + 98/15 is 706/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 15 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 21 × 5 = 105,
   4/21 = 4 × 5/21 × 5 = 20/105
3. Likewise, for the 2nd fraction, since 15 × 7 = 105,
   98/15 = 98 × 7/15 × 7 = 686/105
4. Add the two like fractions:
   20/105 + 686/105 = 20 + 686/105 = 706/105
5. So, 4/21 + 98/15 = 706/105
   In mixed form: 676/105

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