Answers

Add 64/5 and 70/80

1^st number: 12 4/5, 2^nd number: 70/80

64/5 + 70/80 is 547/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 5 × 16 = 80,
   64/5 = 64 × 16/5 × 16 = 1024/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   70/80 = 70 × 1/80 × 1 = 70/80
4. Add the two like fractions:
   1024/80 + 70/80 = 1024 + 70/80 = 1094/80
5. 1094/80 simplified gives 547/40
6. So, 64/5 + 70/80 = 547/40
   In mixed form: 1327/40

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