Answers

Add 15/40 and 24/80

15/40 + 24/80 is 27/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 40 × 2 = 80,
   15/40 = 15 × 2/40 × 2 = 30/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   24/80 = 24 × 1/80 × 1 = 24/80
4. Add the two like fractions:
   30/80 + 24/80 = 30 + 24/80 = 54/80
5. 54/80 simplified gives 27/40
6. So, 15/40 + 24/80 = 27/40

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