## 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: Common ordinary fractions subtracted: all the operations run by users, online, with explanations

### Data set no. 2: Common ordinary fractions subtracted: all the operations run by users, online, with explanations

### Data set no. 3: Common ordinary fractions subtracted: all the operations run by users, online, with explanations

### Data set no. 4: Common ordinary fractions subtracted: all the operations run by users, online, with explanations

### Data set no. 5: Common ordinary fractions subtracted: all the operations run by users, online, with explanations

### Data set no. 6: Common ordinary fractions subtracted: all the operations run by users, online, with explanations