Question

Two third/Two thirds of it is true. Which is Correct??

Answer 1

The correct answer will be as under:

Two thirds of it is true.

Explanation:

While writing a fraction we use a hyphen (-) when the fraction is behaving like an adjective. We don’t need to put a hyphen when the fraction is behaving like a noun. Examples are given below:

Wrong: Two-thirds of the Senate overrode the veto.
(Here two thirds is a noun, not an adjective.)

Right: Two thirds of the Senate overrode the veto.

Wrong: A two thirds majority overrode the veto.
(Here two thirds is an adjective modifying majority.)

Right: A two-thirds majority overrode the veto.

Answer 2

'Two-thirds of it is true.' is correct - while writing fractions in words we should keep in mind:

A fractional number with numerator 1  always has a denominator in the singular. If the numerator is greater than one, the denominator is written in the plural. So, while we write one-third to show the fraction 1/3, 2/3 will be expressed as two-thirds because the denominator is greater than one. Similarly, we use one-fifth for the singular expression but with greater denominators, the numbers would be two-fifths, three-fifths and so on.