Answers

Add 45/54 and 80/7

1^st number: 45/54, 2^nd number: 11 3/7

45/54 + 80/7 is 515/42.

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,
   45/54 = 45 × 7/54 × 7 = 315/378
3. Likewise, for the 2nd fraction, since 7 × 54 = 378,
   80/7 = 80 × 54/7 × 54 = 4320/378
4. Add the two like fractions:
   315/378 + 4320/378 = 315 + 4320/378 = 4635/378
5. 4635/378 simplified gives 515/42
6. So, 45/54 + 80/7 = 515/42
   In mixed form: 1211/42

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