Answers

Add 84/10 and 40/54

1^st number: 8 4/10, 2^nd number: 40/54

84/10 + 40/54 is 1234/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 10 × 27 = 270,
   84/10 = 84 × 27/10 × 27 = 2268/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   40/54 = 40 × 5/54 × 5 = 200/270
4. Add the two like fractions:
   2268/270 + 200/270 = 2268 + 200/270 = 2468/270
5. 2468/270 simplified gives 1234/135
6. So, 84/10 + 40/54 = 1234/135
   In mixed form: 919/135

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