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  • Why Fractions Matter

Why Fractions Matter

Unblock the path to higher mathematics.

Why fractions are essential for math success

Understanding fractions is foundational to math success. Research shows that fractions knowledge in grade 5 uniquely predicts students’ math achievement in high school. This is true even after controlling for other variables that can affect student success in math.1 The connection highlights the importance of fractions in building the advanced math skills students need for academic and career growth.

The impact on students is significant. Struggling with fraction skills often leads to challenges in basic Algebra, which is a critical stepping stone for higher-level math. Without a strong grasp of fractions, students may face limited progress in the advanced math required for many college programs and career opportunities.

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The ongoing challenge of teaching and learning fractions

How are we doing in fractions? In short, not well. Performance with fractions has been a weak point in U.S. education for decades and has not improved in recent years. In a recent national survey of 1,000 Algebra 1 teachers, most rated students’ knowledge of fractions as “poor” and rated fractions as the second greatest barrier to students mastering algebra (second only to word problems).2

As an example, in 1978, less than one-fourth of a nationally representative sample of 20,000 8th graders could answer this question on the National Assessment of Educational Progress (NAEP): What number is 12/13 + 7/8 closest to? (Answer choices: 1, 2, 19, 21, I don’t know)? The most common answers were 19 and 21. Nearly 40 years later, the results had barely changed.3

 The Research Behind Frax

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Stop the fractions struggle

ExploreLearning Frax zeros in on fractions so students can build the concepts and skills that most impact their path to progress. And we’re using a proven, research-driven approach to do it.

We took on math fact fluency—another major barrier to math achievement—with ExploreLearning Reflex. Adaptive and game-based, it’s helped millions of students master their facts and learn to love math. Now Frax is doing the same creating a more effective, more fun way to learn fractions.

Take a Tour Why Frax + Reflex
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Why Choose Frax


Evidence-Based & Proven for Success

Frax is backed by research and proven to build conceptual understanding of fractions.


Puts Data Privacy First

We prioritize data privacy with industry-leading safety measures to keep student information secure.


Helps All Students Succeed

ExploreLearning Frax adapts to meet every learner's needs, ensuring math success for all.



Easy to Implement

With resources like our Educator Resource Hub and Professional Development courses, Frax is easy-to-use and implement.


Loved by Teachers & Students

Teachers and students rave about Frax—read their stories and testimonials.


Everybody's Talking About Frax

“Frax is by far the best program I have seen for fractions. Even the kids who experience math challenges seem to ‘get’ fractions. Now, when any fraction related math comes up in our lessons, they all seem to know the correct answer!”

- Frax Teacher, Cloquet Independent School District 94, MN

"I use Frax in my classes. On our mid-year screener, my students outperformed the other 3rd grade classes that don’t use Frax. My two classes’ average point increase was double that of the other five classes."

- Frax Teacher, Liberty Hill Independent School District, TX

"My kids absolutely love Frax! Their abilities vary, but ALL my students feel success with Frax. They have a much better grasp on fractions overall and it has really made a difference in what we are able to do in class."

- Frax Teacher, Redwood Preparatory Charter School, CA

"My students are super sad that there are only 27 missions in Frax Sector 1. They are literally begging to do more fraction work! One student who usually struggles with math concepts completed all of the missions and is now getting A’s in math instead of C’s."

- Frax Teacher, Greenville Co School District, SC

"My students LOVE Frax! They now regularly say things like ‘Well I know that 1/4 + 1/4 = 1/2...’ or ‘I know that 3/6 = 1/2...’, which were not things they were saying before working on Frax. The improvement in their fraction fluency has been noticeable."

- Frax Teacher, Governor Wentworth Regional School District, NH

Take your own tour of Frax

Explore everything Frax has to offer with a free trial. Or contact us for a quote or demo.

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Citations

  1. Early predictors of high school math achievement. Siegler, R.S., …Chen, M. (2012). Psychological Science, 23(7), 691-697.
  2. Final Report on the National Survey of Algebra Teachers for the National Math Panel. Hoffer, T.B, Venkataraman, L., Hedberg, E. C., Shagle, S. (2007). National Opinion Research Center (NORC) at the University of Chicago.
  3. Fractions: Where It All Goes Wrong. Siegler, Robert S. (2017). Scientific American (online).
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© 2025 ExploreLearning. All rights reserved. Frax is a registered trademark of ExploreLearning.

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About Frax
  • Explore Frax (Take a Tour)
  • Supporting All Students
  • Why Fractions Matter
  • Frax and Reflex: Better Together
  • Preparing Students for Algebra
  • Math Engagement Strategies
  • The Frax Experience
  • Testimonials
Research
  • The Impact of Frax on Student Achievement
  • The Research Behind Frax
Support
  • Professional Development
  • Help Center
  • Site Status
Resources
  • Educator Resource Hub
  • Success Stories
  • Insights
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  • Sign Up for Free
  • Request Purchasing Info
  • Request a Demo
  • Request a Pilot
  • Contact Support

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