Answers

Add 16/21 and 9/7

1^st number: 16/21, 2^nd number: 1 2/7

16/21 + 9/7 is 43/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 7 is 21
   
   Next, find the equivalent fraction of both fractional numbers with denominator 21
2. For the 1st fraction, since 21 × 1 = 21,
   16/21 = 16 × 1/21 × 1 = 16/21
3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
   9/7 = 9 × 3/7 × 3 = 27/21
4. Add the two like fractions:
   16/21 + 27/21 = 16 + 27/21 = 43/21
5. So, 16/21 + 9/7 = 43/21
   In mixed form: 21/21

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