Answers

Add 15/12 and 40/80

1^st number: 1 3/12, 2^nd number: 40/80

15/12 + 40/80 is 7/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 80 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 12 × 20 = 240,
   15/12 = 15 × 20/12 × 20 = 300/240
3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
   40/80 = 40 × 3/80 × 3 = 120/240
4. Add the two like fractions:
   300/240 + 120/240 = 300 + 120/240 = 420/240
5. 420/240 simplified gives 7/4
6. So, 15/12 + 40/80 = 7/4
   In mixed form: 13/4

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