Answers

Add 80/12 and 90/18

1^st number: 6 8/12, 2^nd number: 5 0/18

80/12 + 90/18 is 35/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 18 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 12 × 3 = 36,
   80/12 = 80 × 3/12 × 3 = 240/36
3. Likewise, for the 2nd fraction, since 18 × 2 = 36,
   90/18 = 90 × 2/18 × 2 = 180/36
4. Add the two like fractions:
   240/36 + 180/36 = 240 + 180/36 = 420/36
5. 420/36 simplified gives 35/3
6. So, 80/12 + 90/18 = 35/3
   In mixed form: 112/3

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