The phrase "a much higher fraction" is correct and usable in written English.
It can be used when comparing proportions or percentages in a quantitative context.
Example: "In the latest survey, a much higher fraction of participants reported feeling satisfied with their jobs compared to last year."
Alternatives: "a significantly larger portion" or "a considerably greater share".
But he leads by 27 percent in Clay County, which has counted a much higher fraction of its votes.
However, measurements of 67P showed that its ice has a much higher fraction of deuterium – a heavy form of hydrogen – than water found on Earth.
The two reactors are about one-twentieth of the state's installed capacity and generate one-tenth of its electricity; they are a much higher fraction in the downstate region.
The difference across platforms is highly statistically significant (χ 2 = 2711).Footnote 6 It is clear a much higher fraction of tweets fall into the chemtrails conspiracy camp than do public Facebook posts or those on other online platforms.
By comparison, about 10percentt of all Americans are former Catholics, according to a Pew survey released in 2008; the difference is partly explained by the fact that a much higher fraction of Hispanics started as Catholics.
The need to improve resource-efficiency has stimulated interest in Fast-Reactor-based fuel cycles, which can exploit a much higher fraction of the energy content of mined uranium by burning U-238, mainly after conversion into Pu-239.
It was found that hp mc-Si wafers have a more uniform initial grain size (coefficient of variation CV < 2.5) and grain orientation (CV < 1.5) distribution, with a smaller mean grain size (<4 mm2) and a much higher length fraction of random grain boundaries (>60%) in comparison to the conventional mc-Si wafers.
MK-8825 has similar potency as MK-3207, but has a much higher unbound fraction in rat plasma.
The structure of sculptured thin films (STFs) consists of rough surface with a much higher void fraction than the films produced using conventional deposition methods.
These new data rule out most existing models for Mercury's formation that had been developed to explain the unusually high density of the innermost planet, which has a much higher mass fraction of iron metal than Venus, Earth or Mars, Peplowski points out.
In addition to this subtle difference in C-N termini distance, we observe that the N and C termini have a much higher interacting fraction for ApoE3 than ApoE4 (p<0.0001) (figure 1f).
