The phrase "an equal fraction of" is correct and usable in written English.
It can be used when discussing proportions or shares that are the same in size or amount among different parts or groups.
Example: "The committee decided to allocate an equal fraction of the budget to each project proposal."
Alternatives: "the same portion of" or "an identical share of".
On the average, all sensors provide equally valuable data, and should receive an equal fraction of available system rate.
The aoristic method gives each crime a value of 1 and assigns an equal fraction of that value to each unit of analysis in which the crime could have occurred.
Wild type ommatidia are composed of the eight R cells, each roughly occupying an equal fraction of the omatidial volume, and attached to other R cells at their lateral and apical surfaces.
Then, given an alignment, each feature received an equal fraction of the alignment's weight.
Overall, younger and older MSM seem to be underrepresented assuming an equal fraction of MSM over age groups.
Our starting assumption is that each of the three zones occupies an equal fraction of the cell mass (Rappaport, 1976).
eQTL studies of the relationship between the presence of an SNP and message level show an approximately equal fraction of increase versus decrease of expression [ 26].
With 200 μM stimulation a slight decrease of cytosolic ROS is measured, nevertheless an almost equal fraction of cells as for the higher stimulation enters apoptosis.
SIM analysis revealed that a nearly equal fraction of Gln cyclizes to pGlu in the ion source for both the isotope-labeled and nonlabeled species.
Instead, Rotker argued, each defendant could be held responsible only for a small and roughly equal fraction of the whole.
A polymer (bPOEAA2) with an intermediate degree of branching and approximately equal fraction of secondary and tertiary amines was identified to be optimal in forming stable polyplexes with plasmid DNA.
