Answers

Add 60/3 and 42/80

1^st number: 20 0/3, 2^nd number: 42/80

60/3 + 42/80 is 821/40.

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,
   60/3 = 60 × 80/3 × 80 = 4800/240
3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
   42/80 = 42 × 3/80 × 3 = 126/240
4. Add the two like fractions:
   4800/240 + 126/240 = 4800 + 126/240 = 4926/240
5. 4926/240 simplified gives 821/40
6. So, 60/3 + 42/80 = 821/40
   In mixed form: 2021/40

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