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

Ex Input:
A recipe calls for 0.6667 cup of diced green pepper . Give the number of cups of diced green pepper that should be used to make 0.5 of this recipe .

Ex Output:
0.3333

Ex Input:
Nancy grew 6 potatoes . Sandy grew 7 potatoes . How many potatoes did they grow in total ?

Ex Output:
13

Ex Input:
Kimberly went to the store 3 times last month . She buys 7 peanuts each time she goes to the store . How many peanuts did Kimberly buy last month ?

Ex Output:
21