Answers

Add 84/80 and 75/54

1^st number: 1 4/80, 2^nd number: 1 21/54

84/80 + 75/54 is 439/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 54 is 2160
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2160
2. For the 1st fraction, since 80 × 27 = 2160,
   84/80 = 84 × 27/80 × 27 = 2268/2160
3. Likewise, for the 2nd fraction, since 54 × 40 = 2160,
   75/54 = 75 × 40/54 × 40 = 3000/2160
4. Add the two like fractions:
   2268/2160 + 3000/2160 = 2268 + 3000/2160 = 5268/2160
5. 5268/2160 simplified gives 439/180
6. So, 84/80 + 75/54 = 439/180
   In mixed form: 279/180

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