Answers

Add 84/54 and 15/80

1^st number: 1 30/54, 2^nd number: 15/80

84/54 + 15/80 is 251/144.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 80 is 2160
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2160
2. For the 1st fraction, since 54 × 40 = 2160,
   84/54 = 84 × 40/54 × 40 = 3360/2160
3. Likewise, for the 2nd fraction, since 80 × 27 = 2160,
   15/80 = 15 × 27/80 × 27 = 405/2160
4. Add the two like fractions:
   3360/2160 + 405/2160 = 3360 + 405/2160 = 3765/2160
5. 3765/2160 simplified gives 251/144
6. So, 84/54 + 15/80 = 251/144
   In mixed form: 1107/144

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