diff --git a/create.py b/create.py
index 4387b5f..954985e 100644
--- a/create.py
+++ b/create.py
@@ -1,5 +1,5 @@
 import random
-import re
+from cfractions import Fraction
 
 
 def create_number(i):
@@ -41,7 +41,7 @@ def create_formula(flag_num):
                     result.insert(i+3,')')
                     break
 
-    print(result)
+    # print(result)
     formula = str(str(result).replace("'","").replace(',','')).replace('[','').replace(']','')
     # 计算
     while len(result) != 1:
@@ -66,38 +66,52 @@ def create_formula(flag_num):
         else:
             if '*' in result:
                 number_sign = result.index('*')
-                print(result)
+                # print(result)
                 number_num = float(result[number_sign - 1]) * float(result[number_sign + 1])
                 result[number_sign] = number_num
                 result.remove(result[number_sign - 1])
                 result.remove(result[number_sign])
-                print('*'+str(result))
+                # print('*'+str(result))
             elif '÷' in result:
                 number_sign = result.index('÷')
                 if result[number_sign + 1] == 0 or result[number_sign + 1] == '0':
                     create_formula(flag_num)
                 else:
-                    number_num = float(result[number_sign - 1]) / float(result[number_sign + 1])
+                    # print(result[number_sign - 1],result[number_sign + 1])
+                    number_num = Fraction(int(result[number_sign - 1]) , int(result[number_sign + 1]))
+                    # print(number_num)
                     result[number_sign] = number_num
                     result.remove(result[number_sign - 1])
                     result.remove(result[number_sign])
-                print('÷'+str(result))
+                # print('÷'+str(result))
             elif '+' in result:
                 number_sign = result.index('+')
                 number_num = float(result[number_sign - 1]) + float(result[number_sign + 1])
                 result[number_sign - 1] = number_num
                 result.remove(result[number_sign])
                 result.remove(result[number_sign])
-                print('+'+str(result))
+                # print('+'+str(result))
             elif '-' in result:
                 number_sign = result.index('-')
                 number_num = float(result[number_sign - 1]) - float(result[number_sign + 1])
                 result[number_sign - 1] = number_num
                 result.remove(result[number_sign])
                 result.remove(result[number_sign])
-                print('-'+str(result))
+                # print('-'+str(result))
 
-    result = str(result).replace('[','').replace(']','')[0:5]
+    result = str(result).replace('[','').replace(']','')
+    # print('------------')
     # print(result)
+    # print('+++++++++++++')
+    if 'Fraction' in result:
+        start = result.index('(')
+        center = result.index(',')
+        end = result.index(')')
+        if result[start + 1] == 0 or result[start + 1] == '0':
+            result = 0
+        else:
+            result = str(result)[start+1:center] + '/' + str(result)[center+1:end]
+        # print(result)
+        # print(start,center,end)
     # print(formula)
     return result,formula
\ No newline at end of file