The understanding of fractions can be challenging for primary school students. Music, like mathematics requires an understanding of subdivisions of numbers and proportional reasoning. Musical experience has been shown to enhance cognitive skills and most children like music (in contrast to maths). Yet, experimental work that has integrated the teaching of mathematical and musical concepts is scarce. In this study, we tested the feasibility of PlayMyMath in UK schools, an innovative EdTech approach that combines the teaching of fractions with the building of musical rhythms. We employed a mixed-methods approach: a qualitative strand explored implementation of PlayMyMath with teaching staff and a quasi-experimental pretest/post-test design study examined whether PlayMyMath can improve fraction skills in Year 4 students in the UK. We envisage this study as a precursor to further pilot and efficacy studies that will allow us to test the intended outcomes in a larger population.Uploaded here is the quantitative data derived from this project in an excel format.