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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
roughly what fraction
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "roughly what fraction" is correct and usable in written English.
You can use it when asking for an approximate numerical value or proportion of something in a casual or informal context. Example: "Can you tell me roughly what fraction of the budget is allocated to marketing?"
✓ Grammatically correct
Biochemistry
The Guardian
The New York Times - Science
The Washington Post
Harvard University
Forbes
Vice
Plosone
eLife
Alternative expressions(3)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
The regime where only a fraction of cells show calcium influx in response to the addition of oligomers can be used to roughly estimate what fraction of all oligomers can cause this influx, while at higher oligomer concentrations, all of the cells show calcium influx, and the effect saturates.
Science
But what fraction?
News & Media
What fraction came from the glacial ridge?
News & Media
What fraction of Americans can actually afford that?
News & Media
What fraction of all contacted individuals began the study?
Academia
What Fraction of Bankruptcies are "Medical"?
News & Media
Exactly what fraction this is remains a mystery.
News & Media
What fraction of covariation is BLD?
Science
Given the result from this study that roughly 30% of the rat genome was significantly expressed during all time points of marrow ablation-induced intramembranous bone regeneration, it is of interest to discuss what fraction of the genome is involved in other forms of wound and tissue repair.
Science
What fraction of these are PIWI+?
Science
What fraction had IIE? σF activity?
Science
Expert writing Tips
Best practice
When using "roughly what fraction", ensure the context implies an approximation is acceptable. If precision is needed, rephrase to ask for exact figures.
Common error
Avoid using "roughly what fraction" when the situation requires a precise figure. This phrase signals that an approximate answer is sufficient, so it's inappropriate when accuracy is critical.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "roughly what fraction" functions as an interrogative phrase used to inquire about an estimated portion or percentage of something. Ludwig AI confirms its usability in written English.
Frequent in
News & Media
30%
Science
30%
Academia
15%
Less common in
Formal & Business
10%
Wiki
10%
Reference
5%
Ludwig's WRAP-UP
The phrase "roughly what fraction" is used to inquire about an approximate portion or percentage, indicating that a precise figure is not required. Ludwig AI confirms that it's appropriate for general use. While grammatically sound and appearing in various sources like news media, science, and academic contexts, it leans towards a neutral to informal tone. For more formal settings, consider alternatives like "approximately what proportion". When precision is paramount, avoid using "roughly what fraction" altogether and request specific values instead.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
approximately what proportion
Replaces "roughly" with "approximately" and "fraction" with "proportion", maintaining a formal tone and meaning.
about what percentage
Uses "about" for approximation and "percentage" to specify the part out of 100.
around what ratio
Replaces "fraction" with "ratio", indicating a relationship between two quantities.
estimated what part
Emphasizes the estimation aspect and uses "part" as a more general term.
in the vicinity of what amount
Expresses approximation using "in the vicinity of" with focus on a quantity.
something like what percentage
Adds a casual tone using "something like" while still asking for a percentage.
a rough estimate of what fraction
Rephrases to highlight the inexact nature of the answer sought.
a ballpark figure for what proportion
Uses "ballpark figure" to indicate a very approximate answer about a proportion.
a guesstimate of what fraction
Combines "guess" and "estimate" to emphasize the approximate nature.
in the neighborhood of what proportion
Uses "in the neighborhood of" to convey an approximate amount.
FAQs
How can I use "roughly what fraction" in a sentence?
You can use "roughly what fraction" when you need to estimate a portion of a whole. For example, "Roughly what fraction of the budget is allocated to marketing this quarter?"
What's a more formal alternative to "roughly what fraction"?
A more formal alternative is "approximately what proportion". This phrase maintains a professional tone while still seeking an approximate value.
Is it appropriate to use "roughly what fraction" in academic writing?
While grammatically correct, "roughly what fraction" might be too informal for some academic contexts. Consider using alternatives like "approximately what percentage" for a more suitable tone.
When should I avoid using "roughly what fraction"?
Avoid using "roughly what fraction" when precision is required. If you need an exact value, ask for specific numbers or percentages instead.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested