Answers

Add 84/80 and 54/8

1^st number: 1 4/80, 2^nd number: 6 6/8

84/80 + 54/8 is 39/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 8 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 80 × 1 = 80,
   84/80 = 84 × 1/80 × 1 = 84/80
3. Likewise, for the 2nd fraction, since 8 × 10 = 80,
   54/8 = 54 × 10/8 × 10 = 540/80
4. Add the two like fractions:
   84/80 + 540/80 = 84 + 540/80 = 624/80
5. 624/80 simplified gives 39/5
6. So, 84/80 + 54/8 = 39/5
   In mixed form: 74/5

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