Answers

Add 80/3 and 45/21

1^st number: 26 2/3, 2^nd number: 2 3/21

80/3 + 45/21 is 605/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 3 and 21 is 21
   
   Next, find the equivalent fraction of both fractional numbers with denominator 21
2. For the 1st fraction, since 3 × 7 = 21,
   80/3 = 80 × 7/3 × 7 = 560/21
3. Likewise, for the 2nd fraction, since 21 × 1 = 21,
   45/21 = 45 × 1/21 × 1 = 45/21
4. Add the two like fractions:
   560/21 + 45/21 = 560 + 45/21 = 605/21
5. So, 80/3 + 45/21 = 605/21
   In mixed form: 2817/21

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