Answers

Add 80/15 and 63/54

1^st number: 5 5/15, 2^nd number: 1 9/54

80/15 + 63/54 is 13/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 15 × 18 = 270,
   80/15 = 80 × 18/15 × 18 = 1440/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   63/54 = 63 × 5/54 × 5 = 315/270
4. Add the two like fractions:
   1440/270 + 315/270 = 1440 + 315/270 = 1755/270
5. 1755/270 simplified gives 13/2
6. So, 80/15 + 63/54 = 13/2
   In mixed form: 61/2

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