Question

A table shows the difference of several like fractions. This is 4th grade. It ask to write a rule that you can use to subtract like fractions without using models.

Answer 1

Table is not shown 

Any how, the rule is quite simple

For like fractions, 
a) write the denominator one time
b)  Subtract the values in the numerator. 

Answer 2

It is easy all you have to do is get a common denominator and subtract the numerator