At the British national championships in 2014, Fragapane placed 2nd on vault with a score of 14.000, 5th on floor exercise (13.000), and 3rd on uneven bars (13.950). She finished third in the all-around competition with a total score of 55.700, and was selected to compete at the European Women's Artistic Gymnastics Championships in Sofia, Bulgaria.
At the 2014 Commonwealth Games, Fragapane competed on all four events in the team final, where the English team won gold. She qualified first into the all-around final with a score of 56.740, more than a point and a half ahead of the second-place qualifier Ellie Black of Canada. She also qualified first on balance beam, vault, and floor. Fragapane won the individual all-around final with a score of 56.132, and the women's vault final with a score of 14.633. On 1 August, she won the floor final with a score of 14.541. With four gold medals in a single competition, Fragapane was England's most successful female Commonwealth Games competitor in over 80 years.
After Fragapane's success in 2014, she was named BBC Young Sports Personality of the Year, edging out para-cyclist Sophie Thornhill and golfer Bradley Neil.