Answers

Add 49/21 and 15/9

1^st number: 2 7/21, 2^nd number: 1 6/9

49/21 + 15/9 is 4/1.

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,
   49/21 = 49 × 3/21 × 3 = 147/63
3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
   15/9 = 15 × 7/9 × 7 = 105/63
4. Add the two like fractions:
   147/63 + 105/63 = 147 + 105/63 = 252/63
5. 252/63 simplified gives 4/1
6. So, 49/21 + 15/9 = 4/1

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