Subtraction of Fraction

Subtraction of fraction follows the same procedure as addition of fraction. the only difference is the operation.

Same denominators

Just like the addition, in this case what we will do is to subtract the two numerators and then put the answer over the common denominator

For example    7/9 - 3/9. Subtracting the two numerators we will end of with 4. Therefore our answer will be 4/9.

Different denominators

Just like addition we must first find the LCM.

For example 3/4 - 5/12. If we are to follow the rule and find the LCM we will see that both the number can go into 12. Therefore,

9 - 5     =    4        OR       1

12             12                    3