Answers

Add 81/54 and 12/72

1^st number: 1 27/54, 2^nd number: 12/72

81/54 + 12/72 is 5/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 72 is 216
   
   Next, find the equivalent fraction of both fractional numbers with denominator 216
2. For the 1st fraction, since 54 × 4 = 216,
   81/54 = 81 × 4/54 × 4 = 324/216
3. Likewise, for the 2nd fraction, since 72 × 3 = 216,
   12/72 = 12 × 3/72 × 3 = 36/216
4. Add the two like fractions:
   324/216 + 36/216 = 324 + 36/216 = 360/216
5. 360/216 simplified gives 5/3
6. So, 81/54 + 12/72 = 5/3
   In mixed form: 12/3

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