The phrase "a very significant fraction" is correct and usable in written English.
It can be used when discussing a portion or percentage of a whole that is notably large or important in a particular context.
Example: "In the survey, a very significant fraction of respondents indicated that they preferred online shopping over traditional retail."
Alternatives: "a considerable portion" or "a substantial percentage."
"It's a very significant fraction," said Pedro Faria, author of the report.
The technology has been gifted "a very significant fraction" of the billions of dollars earmarked by Shell for clean energy research, he added.
"A very significant fraction of former Sons of Iraq were former insurgents who switched sides," Mr. Biddle said, referring to the Awakening.
You'll have a big, elaborate industry, like General Electric, which will involve companies that turn out many products for a considerable amount of money, so that people are going to have to spend a very significant fraction of their disposable income every year on products that will keep them young and robust".
In fact, several studies have reported that a very significant fraction of Cu, Zn, Fe and Mn in soil solution from limy, alkaline soils was present in the form of complexes with DOM [16 18].
Transposable elements make up a very significant fraction of the genome of Trichomonas vaginalis but the vast majority are DNA transposons with only two, large, retrotransposons reported [ 32].
"The problems that were once associated with infectious diseases have become, in the main, significantly less," he said, adding that this development supports "very strongly Jim's vision that genetic disease was going to become a very large and very significant fraction of the health care problems to which persons are prey".
A very significant terrestrial organic fraction (25 50%) is contained in sediments deposited on the continental shelf to the north of 58°N.
This estimate and the findings are discussed and good support is established for the basic assumption that grain subdivision accompanied by a strong texture evolution can lead to a very significant increase in the fraction of high angle boundaries in a deformed metal.
