.to solve the problems in the maths and chemistry为什么要把in the maths 的the删去

.to solve the problems in the maths and chemistry为什么要把in the maths 的the删去
.to solve the problems in the maths and chemistry
为什么要把in the maths 的the删去

.to solve the problems in the maths and chemistry为什么要把in the maths 的the删去
学科名词前面不加冠词