Fraction PON for iPhone & iPad
Support
Cut, snap, and find a perfect fit. How to play Fraction PON and get help when you need it.
110 puzzles to cut and snap.
Snap together
Drag one piece onto another, or tap two pieces in turn, to join them. Match the targets at the top of the screen.
Cut in half
Tap the scissors, then a piece, to halve it. You can also select the piece first and then tap the scissors.
Try and undo
The bottom-left arrow undoes one move. Restart at the bottom right resets the current puzzle. Open ⓘ to practise without changing your saved puzzle.
Frequently asked questions
Are there hints?
Puzzles 1–90 have a lightbulb button for an optional one-move hint. The suggested pieces glow. Tap again to hide the hint, or make a move to clear it. Puzzles 91–110 have no hints.
Why is my puzzle not complete?
All targets must be present at the same time. Two identical targets need two separate matching pieces. Open ⓘ to check whether extra pieces can be left unused.
Why can’t I use the scissors?
The first seven puzzles use joining only. If there are six pieces, join some to make room before cutting. Pieces that are too small or cannot be halved exactly cannot be cut.
How do I change the sound or fraction reading?
Menu has separate controls for fraction reading, music, and sound effects and haptics. Voice and sound controls are also available during play. Enabled sound can play in silent mode. If you hear nothing, check the device’s media volume and audio output.
Is my puzzle saved?
Your board is saved on your device after moves. Choose Continue on the home screen to resume. The app has no developer-operated cross-device sync.
How do I clear progress?
Open Menu > Reset progress and confirm. This clears completed puzzles, the current board, move history and cut records. Language and audio preferences remain unchanged.
How do I change the language?
Open Menu > Language / ことば and choose English or Japanese.
Do I need the internet or an account?
The game and hints work offline. There are no accounts, ads or in-app purchases. Viewing websites and sending support email require a connection.
Contact
Parents and guardians can email questions or report problems. For a problem, include the puzzle number, device model, iOS or iPadOS version, and what happened. We do not need your child’s name or school. Check screenshots for personal information before attaching them.
How we handle support information: Privacy Policy