Answers

Add 81/20 and 80/5

1^st number: 4 1/20, 2^nd number: 16 0/5

81/20 + 80/5 is 401/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 5 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 20 × 1 = 20,
   81/20 = 81 × 1/20 × 1 = 81/20
3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
   80/5 = 80 × 4/5 × 4 = 320/20
4. Add the two like fractions:
   81/20 + 320/20 = 81 + 320/20 = 401/20
5. So, 81/20 + 80/5 = 401/20
   In mixed form: 201/20

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