Rational number in fraction that is equivalent to - 1.5

-3/2 or - 1 1/2 If it needs to be in simplest form

Step-by-step explanation:

There are lots of fractions that is equivalent to - 1.5, one might be:

-3/2

Another one might be,

-6/4

But if your answer needs to be in the simplest form, the - 3/2 is your answer

-3/2 = - 1 1/2