Answers

Add 84/45 and 42/54

1^st number: 1 39/45, 2^nd number: 42/54

84/45 + 42/54 is 119/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 45 × 6 = 270,
   84/45 = 84 × 6/45 × 6 = 504/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   42/54 = 42 × 5/54 × 5 = 210/270
4. Add the two like fractions:
   504/270 + 210/270 = 504 + 210/270 = 714/270
5. 714/270 simplified gives 119/45
6. So, 84/45 + 42/54 = 119/45
   In mixed form: 229/45

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