1:两个分数间的运算

2:一个分数和一个整数间的运算

3:几分数间的四则混合运算

4:将分数化为小数

5:将分数化为带分数

6:两分数间的比较

7:一个分数和一个整数间的比较-1: The operation between the two points 2: a fraction and an integer operation between the three: a few points between the four hybrid operation 4: to score into decimal 5: fraction into fractions 6: Comparison between the two scores 7 : A scores and the comparison between an integer