An electrical company decides to replace the lightbulbs in all of the nonworking street lights on two specific streets. The company learns that 23 of the lights do not work on the first street and 16 of the lights do not work on the second street. What is the total fractional portion of the nonworking lights on these two streets?

To find the total fractional portion of nonworking lights, we need to determine the fraction of lights that don't work on each street and then add them together.

On the first street, there are a total of $n$ lightbulbs, so the fraction of nonworking lights is $\frac{23}{n}$.

On the second street, there are a total of $m$ lightbulbs, so the fraction of nonworking lights is $\frac{16}{m}$.

Since the two streets are separate, the total fractional portion of nonworking lights is $\frac{23}{n} + \frac{16}{m}$. (Note that we cannot express this sum as a single fraction because the denominators $n$ and $m$ are different.)

Thus, the total fractional portion of nonworking lights is $\boxed{\frac{23}{n} + \frac{16}{m}}$.

To find the total fractional portion of the nonworking lights on these two streets, we need to calculate the fraction of nonworking lights on each street and then add them together.

On the first street, there are 23 nonworking lights out of a total number of lights on the street.

The fraction of nonworking lights on the first street can be calculated as: 23/total number of lights on the street.

On the second street, there are 16 nonworking lights out of a total number of lights on the street.

The fraction of nonworking lights on the second street can be calculated as: 16/total number of lights on the street.

To find the total fractional portion of the nonworking lights on these two streets, we add the two fractions together.

Total fractional portion = fraction of nonworking lights on the first street + fraction of nonworking lights on the second street

Total fractional portion = (23/total number of lights on the first street) + (16/total number of lights on the second street)

Please provide the total number of lights on each street so we can calculate the answer.

To find the total fractional portion of the nonworking lights on these two streets, we need to find the ratio of the nonworking lights to the total number of lights on each street and then add them together.

First, let's find the fractional portion of nonworking lights on the first street. There are 23 nonworking lights out of the total number of lights on the first street (which we don't know yet). We can represent this as a fraction: 23/N, where N is the total number of lights on the first street.

Next, let's find the fractional portion of nonworking lights on the second street. There are 16 nonworking lights out of the total number of lights on the second street (again, we don't know the total). This can be represented as a fraction: 16/M, where M is the total number of lights on the second street.

To find the total fractional portion, we need to add these two fractions: 23/N + 16/M.

Since we don't have the specific values for N and M, we cannot simplify the expression any further.