Exercise. Adding and subtracting of two fractions

Exercise. Please, find value of the sum (difference) of two fractions, write the answer and press the button "Submit".

Assessment of tasks

1. The maximum you can get 4

   points

   when solve the exercise
2. You will get less points if don t convert improper fractions into mixed numbers or don t simplify fraction

After pressing the , you will know right or wrong, you have solved the problem.

To skip the current example and go to the next press .

Attention!!! If you skip an example, it is counted as a not solved and you can not come back to it.

To add two fractions, it is necessary:

• to reduce fraction to a least common denominator;
• add the numerators and put the answer over the same denominator;
• simplify the fraction;
• to convert improper fractions to mixed numbers if needed.

To subtract two fractions, it is necessary:

• to reduce fraction to a least common denominator;
• subtract the numerators and put the answer over the same denominator;
• simplify the fraction.