This question was posted almost a week ago, and I am not sure if you still need the answer, but I'll explain it.
The total number of all of the shapes were placed in the bag are equal to 100. The number comes from adding 32+20+48=100. This is our total number and will be the denominator. There are a total of 32 cards which have a hexagon, this number will be our numerator.
So far we have 32/100 , but this is not simplest form.
Next to reduce the fraction, the GCF must be found.
All you need to do is devide 300 by 50 because you know that you have 300 dolars and it is 50 dollars per person. 300/50 is 6 therefore 6 people can be at the party.