Answers

Add 70/54 and 80/7

1^st number: 1 16/54, 2^nd number: 11 3/7

70/54 + 80/7 is 2405/189.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 7 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 54 × 7 = 378,
   70/54 = 70 × 7/54 × 7 = 490/378
3. Likewise, for the 2nd fraction, since 7 × 54 = 378,
   80/7 = 80 × 54/7 × 54 = 4320/378
4. Add the two like fractions:
   490/378 + 4320/378 = 490 + 4320/378 = 4810/378
5. 4810/378 simplified gives 2405/189
6. So, 70/54 + 80/7 = 2405/189
   In mixed form: 12137/189

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