#### The links to all the fractions subtraction operations performed by users. At this moment, these operations have been grouped into six smaller data sets (distinct data sets):

### Data set no. 1: Ordinary (common) math fractions subtracted: all the operations run by users, with explanations

### Data set no. 2: Ordinary (common) math fractions subtracted: all the operations run by users, with explanations

### Data set no. 3: Ordinary (common) math fractions subtracted: all the operations run by users, with explanations

### Data set no. 4: Ordinary (common) math fractions subtracted: all the operations run by users, with explanations

### Data set no. 5: Ordinary (common) math fractions subtracted: all the operations run by users, with explanations

### Data set no. 6: Ordinary (common) math fractions subtracted: all the operations run by users, with explanations