The phrase "take a small proportion" is grammatically correct and can be used in written English.
It is often used to describe the act of taking a small amount or portion of something. Example: The company plans to take a small proportion of its profits and reinvest them in the development of new products.
"It's going to be a challenge, it's going to cost us a lot of money, but we're glad to do it, these birds deserve a chance, unfortunately we can only take a small proportion," said Sasha director Dorothy Davies, who started the sanctuary in 1981.
When communication range increases to 200, those unmoving vehicles only take a small proportion in the biggest CC.
The noise included in pipeline pressure signal is a small noise whose energy takes a small proportion of pressure signal and is concentrated on high frequency components.
They were predominantly day schools, though 10 of them took a small proportion of boarders.
In addition, because individual-level data are limited, we have only taken a small proportion of potentially confounding baseline patient characteristics into account.
Thus, the resection of the impaired kidney would not result in significant decline of total eGFR as it only takes a small proportion.
And some of these "miracle" schools achieve better results by taking a smaller proportion of the hardest to educate students: those who have limited-English proficiency, those with disabilities, and immigrant children.
Lectin-type phloem proteins take only a small proportion of phloem sap proteins that have potential of defensive significance in plants under attacks by phloem-feeding insects [ 21].
Protected cycleways – the sort with kerbs, which vehicles can't stray into – take up a small proportion of the lane space of about 3% of all roads in the centre of the capital.
Although Your Care Rating has 32 organisations signed up and says it is the largest survey of care home residents in the UK, it only takes in a small proportion of the 450,000 care home residents.
Every time you take a small risk your confidence grows in proportion to your fear shrinking.
