To find out how to convert 1.5 in fraction, you just need to follow the simple three steps that are mentioned below. The steps are:

Write the given value in the form of a simple fraction that is 1.5/1.

Multiply both numerator and denominator by 10 for every number after the decimal point ie. 1.5*10/1*10 which will give 15/10.

Now just reduce the obtained simple fraction by dividing it by its common factor or multiples.

On dividing and solving, 16/10 will become 3/2.

And so the final value on converting 1.5 as a fraction comes out to be 3/2.