某老师上课时出示了这样一道练习题,1/2+1/2=( )。这是一道十分简单的计算题,可是一个平时学习很认真的学生却回答:“等于2/4”。老师感到很吃惊,问他“为什么等于2/4呢?”这个学生很响亮地回答:“老师,你告诉我们1/2就是两个人吃一块饼,我想1/2+1/2就是两个人吃一块饼加上两个人吃一块饼,应该是四个人吃两块饼,所以等于2/4。”老 A teacher presented such an exercise class in class, 1/2 + 1/2 = (). This is a very simple calculation, but a student who is usually serious learns to answer: “equal to 2/4”. The teacher was very surprised and asked him “Why is it equal to 2/4?” The student replied loudly: “Teacher, you told us 1/2 is two people eat a cake, I think 1/2 + 1/2 is two Individuals eat a cake plus two people eat a cake, four people should eat two pieces of cake, so equal 2 / 4. ”Old