Answers

Add 81/7 and 70/54

1^st number: 11 4/7, 2^nd number: 1 16/54

81/7 + 70/54 is 2432/189.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 7 × 54 = 378,
   81/7 = 81 × 54/7 × 54 = 4374/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   70/54 = 70 × 7/54 × 7 = 490/378
4. Add the two like fractions:
   4374/378 + 490/378 = 4374 + 490/378 = 4864/378
5. 4864/378 simplified gives 2432/189
6. So, 81/7 + 70/54 = 2432/189
   In mixed form: 12164/189

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