You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Example Input: lexie has a lot of art materials . she needs to organize all these materials into containers . she counted her crayons and found out that she has 80 crayons which she will place in crayon boxes . every crayon box can contain 8 crayons . how many crayon boxes does she need ?
Example Output: 10

Example Input: divide 39 balloons into 7 equal groups . how many balloons are there in each group ?
Example Output: 5.571428571428571

Example Input: 63 people are going to the zoo . there are 3 cars to take people to the zoo . how many will go in each car if the same number go in each car ?
Example Output:
21

