Answers

Add 49/21 and 42/9

1^st number: 2 7/21, 2^nd number: 4 6/9

49/21 + 42/9 is 7/1.

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,
   42/9 = 42 × 7/9 × 7 = 294/63
4. Add the two like fractions:
   147/63 + 294/63 = 147 + 294/63 = 441/63
5. 441/63 simplified gives 7/1
6. So, 49/21 + 42/9 = 7/1

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