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Save your progress
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Settings
Practice duration
Time per question
Mistakes
Questions you miss during practice will appear here.
Question settings
Skill mastery level
Add fractions
To enter the answer, start by entering the numerator and then the denominator of the fraction. If the answer is a whole number, enter that number.
The fraction addition simulator has three difficulty levels:
- Addition of fractions with the same denominators
- Addition of fractions with different denominators
- Addition of fractions with different denominators, the answer must be simplified
Math skill features
- Multiple difficulty levels. The system will suggest whether you should switch to an easier or harder skill.
- Modes with negative (for addition and subtraction) and fractional numbers
- Fast answer checking for more effective practice
- Type your answer using the number keys. Press Space to reveal the answer.
- Short, timed practice sessions
- An optional answer timer helps you build speed.
- See the correct answer if you make a mistake or run out of time.
Timed practice sessions
The green bar at the bottom shows how much time is left in your session.
Try three five-minute practice sessions a day. After each session, review your results to see how you did. Longer sessions earn a larger XP bonus.
Answer time limit
The blue bar at the top shows how much time you have to answer.
Timed practice helps you recall basic math facts, such as sums and multiplication facts, more quickly.
For harder problems, give yourself more time per question or turn the time limit off.