Question

Evaluate 5−1−90. Write your answer as a fraction in simplest form.

To evaluate 5−1−90, we need to follow the order of operations, which states that we should perform any calculations inside parentheses first, then any exponentiation, then any multiplication or division from left to right, and finally any addition or subtraction from left to right.

In this case, we don't have any parenthesis or exponentiation to evaluate, so we will move on to performing the subtraction.

First, let's calculate 5 - 1:
5 - 1 = 4

Now, let's subtract 90 from 4:
4 - 90 = -86

The final answer is -86.

However, the question asks us to write the answer as a fraction in simplest form. To do that, we can write -86 as a fraction by putting -86 over 1:
-86/1

This fraction is already in its simplest form since -86 and 1 do not have any common factors other than 1. Therefore, the final answer is -86/1, or simply -86.