Answers

Add 81/45 and 12/54

1^st number: 1 36/45, 2^nd number: 12/54

81/45 + 12/54 is 91/45.

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,
   81/45 = 81 × 6/45 × 6 = 486/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   12/54 = 12 × 5/54 × 5 = 60/270
4. Add the two like fractions:
   486/270 + 60/270 = 486 + 60/270 = 546/270
5. 546/270 simplified gives 91/45
6. So, 81/45 + 12/54 = 91/45
   In mixed form: 21/45

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