Answers

Add 84/40 and 42/54

1^st number: 2 4/40, 2^nd number: 42/54

84/40 + 42/54 is 259/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 54 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 40 × 27 = 1080,
   84/40 = 84 × 27/40 × 27 = 2268/1080
3. Likewise, for the 2nd fraction, since 54 × 20 = 1080,
   42/54 = 42 × 20/54 × 20 = 840/1080
4. Add the two like fractions:
   2268/1080 + 840/1080 = 2268 + 840/1080 = 3108/1080
5. 3108/1080 simplified gives 259/90
6. So, 84/40 + 42/54 = 259/90
   In mixed form: 279/90

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