Answers

Add 81/80 and 8/20

1^st number: 1 1/80, 2^nd number: 8/20

81/80 + 8/20 is 113/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 20 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 80 × 1 = 80,
   81/80 = 81 × 1/80 × 1 = 81/80
3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
   8/20 = 8 × 4/20 × 4 = 32/80
4. Add the two like fractions:
   81/80 + 32/80 = 81 + 32/80 = 113/80
5. So, 81/80 + 8/20 = 113/80
   In mixed form: 133/80

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