Answers

Add 81/3 and 70/80

1^st number: 27 0/3, 2^nd number: 70/80

81/3 + 70/80 is 223/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 3 and 80 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 3 × 80 = 240,
   81/3 = 81 × 80/3 × 80 = 6480/240
3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
   70/80 = 70 × 3/80 × 3 = 210/240
4. Add the two like fractions:
   6480/240 + 210/240 = 6480 + 210/240 = 6690/240
5. 6690/240 simplified gives 223/8
6. So, 81/3 + 70/80 = 223/8
   In mixed form: 277/8

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