Abacus Practice
Fraction Addition
Add fractions mentally!
Easy
2 rows · Basic denoms
Hard
3 rows · Mixed denoms
Beast
4 rows · Larger fractions
Customise settings
Min Numerator
Max Numerator
Min Denominator
Max Denominator
Rows
Flash Speed (s)
Questions
Time Limit (s)
Mental Math Mode
Shows answer — no typing needed
Auto Next
Go to next question automatically
Answer Delay
Wait before revealing answer
Auto Delay (s)
Ans Delay (s)
Start Practice
60.0s
0
0
—
Get ready...
What was the total?
Check Answer
Next Question
Stop
0%
Accuracy
Practice complete!
0
Correct
0
Wrong
0
Total
Play Again