Answers

Add 98/21 and 75/9

1^st number: 4 14/21, 2^nd number: 8 3/9

98/21 + 75/9 is 13/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 9 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 21 × 3 = 63,
   98/21 = 98 × 3/21 × 3 = 294/63
3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
   75/9 = 75 × 7/9 × 7 = 525/63
4. Add the two like fractions:
   294/63 + 525/63 = 294 + 525/63 = 819/63
5. 819/63 simplified gives 13/1
6. So, 98/21 + 75/9 = 13/1

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