Answer:
Let's break down the information provided:
Spyro has 12 out of 68 cars in the driveway, which can be represented as 12/68.
Lucy has 13 out of 50 cars, represented as 13/50.
Lucy gives Jack 11 out of 20 cars, represented as 11/20.
To determine how many cars Jack has, we need to calculate the sum of the cars Lucy had before giving some to Jack. So Lucy initially had 13/50 cars and gave away 11/20. We can find the remaining cars by subtracting 11/20 from 13/50:
13/50 - 11/20
To subtract fractions, we need a common denominator. The least common multiple of 50 and 20 is 100.
(13/50) * (2/2) = 26/100
(11/20) * (5/5) = 55/100
Now we can subtract:
26/100 - 55/100 = (26 - 55)/100 = -29/100
Lucy gave away more cars than she had, which means she had a negative number of cars remaining. This doesn't make sense in this context, so there may be an error or inconsistency in the information provided.
As a result, we can't accurately determine how many cars Jack and Lucy have based on the given information.