The phrase "a rational and practical" is correct and usable in written English.
It can be used to describe an approach, idea, or solution that is both logical and feasible.
Example: "In addressing the issue, we need to adopt a rational and practical strategy that considers both the data and the resources available."
Alternatives: "a sensible and pragmatic" or "a logical and feasible".
Addressing 21st-century security challenges requires a rational and practical approach, not one based on misplaced notions that having Trident makes us a great power and enables us "to punch above our weight".
Promisingly, the successful application of multiplex amplification strategy affords a rational and practical consideration for the fabrication of new and high-performance photoelectrochemical sensing devices.
It is believed that a rational and practical concession pricing model can create a 'win win' situation for both the private investor and the host government.
This works aims at demonstrating that a rational, and practical, understanding of the fire performance of structural systems during real fires is unlikely to be achieved only by performing additional standard fire resistance tests.
The above bare-bones points underscore how difficult it has been 1) to use the scientifically-available information to delineate the true impact of radon exposure on the general population; 2) to formulate a rational and practical radon mitigation program; and 3) to explain the risks accurately to regular people.
Adopting human gene symbols for orthologous genes in other mammals is both a rational and a practical way to create a coherent and meaningful gene nomenclature.
The term 'herpes simplex' appeared in Richard Boulton's A System of Rational and Practical Chirurgery in 1713, where the terms 'herpes miliaris' and 'herpes exedens' also appeared.
Mr. Waid told The Times that the tower would eschew all "extraneous ornament or embellishment which has not a rational meaning and practical use" and that it would be "unhampered by archaeological precedent".
Albert Gallatin, Secretary of Treasury under Thomas Jefferson and James Madison, declared his intention to establish "in this immense and fast-growing city... a system of rational and practical education fitting for all and graciously opened to all".
The results are useful for establishing rational and practical soil models for engineering applications concerning blasting.
