What's New

Addressed issues that caused the app to freeze under certain conditions.
Please send your comments and suggestions to [email protected]

App Description

* 2013 Children's Technology Review Editor's Choice Award
* Featured by Apple in the Education Category (Apps for Elementary School, Apps for Middle School)
* Certified by Teachers With Apps "Badge of Distinction" 
* Ranked in 143 App Stores around the world

Visually compare, add, subtract, multiply and divide two fractions with a unique and simple interface.

Explore, play and test your fraction knowledge.

Oh No Fractions! is built on the amazing feedback and response we had with the original free Curious Hat Lab app.

You can perform the following operations on two fractions:
- Compare
- Add
- Subtract
- Multiply
- Divide
Please note that in the Lab Free version Addition, Subtraction, Multiplication and Division are allowed on a limited daily basis.
The Full version of the app, available as separate download, has no restrictions.

The visualization of fractions with simple, effective and interactive graphs, allows the user to explore the solution at each step.

Statistics are kept for each successful and unsuccessful attempt to solve the problems.
This feature is very useful, in the classroom for example, to monitor the child progress.
Stats can now be shared via email.

Oh No Fractions! was featured multiple times by Apple in the Education Store.

Let us know what you think! Write us at [email protected]

App Screenshots

(click to enlarge)

Oh No Fractions! - Curious Hat Lab screenshot 1 Oh No Fractions! - Curious Hat Lab screenshot 2 Oh No Fractions! - Curious Hat Lab screenshot 3 Oh No Fractions! - Curious Hat Lab screenshot 4 Oh No Fractions! - Curious Hat Lab screenshot 5 Oh No Fractions! - Curious Hat Lab screenshot 6 Oh No Fractions! - Curious Hat Lab screenshot 7 Oh No Fractions! - Curious Hat Lab screenshot 8 Oh No Fractions! - Curious Hat Lab screenshot 9 Oh No Fractions! - Curious Hat Lab screenshot 10

App Changes

  • June 07, 2014 Initial release

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