
CommonDivisor
Master Simplifying Fractions
Only for iPhone
Free · Designed for iPhone
iPhone
A simple math game for kids who struggle with reducing fractions.
Find common divisors among 9 numbers and keep dividing.
The rules are easy, but the learning is deep.
Players naturally understand why fractions can be simplified.
• Build intuition for common divisors
• Improve fraction skills through repetition
• Learn by playing, not memorizing
Perfect for home practice, classrooms, and family play.
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
•Improved the sharing feature.
The game type is now shown when sharing your score.
•Added new game types.
•シェア機能を改善しました。
スコアを共有する際に、プレイしたゲームタイプが表示されるようになりました。
•新しいゲームタイプを追加しました。
The developer, Katsuhiko Yao, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Katsuhiko Yao
- Size
- 15.4 MB
- Category
- Education
- Compatibility
Requires iOS 16.6 or later.
- iPhone
Requires iOS 16.6 or later. - Mac
Requires macOS 13.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © Katsuhiko Yao 2025