Answers

Add 81/60 and 80/5

1^st number: 1 21/60, 2^nd number: 16 0/5

81/60 + 80/5 is 347/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 5 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 60 × 1 = 60,
   81/60 = 81 × 1/60 × 1 = 81/60
3. Likewise, for the 2nd fraction, since 5 × 12 = 60,
   80/5 = 80 × 12/5 × 12 = 960/60
4. Add the two like fractions:
   81/60 + 960/60 = 81 + 960/60 = 1041/60
5. 1041/60 simplified gives 347/20
6. So, 81/60 + 80/5 = 347/20
   In mixed form: 177/20

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