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?(1 point)
To find the total fractional portion of the nonworking lights, we need to divide the number of nonworking lights by the total number of lights.
For the first street, there are 23 nonworking lights out of an unknown total number of lights.
For the second street, there are 16 nonworking lights out of an unknown total number of lights.
To find the total fractional portion, we can add the fraction from each street.
Let's say there are n total lights on the first street.
The fraction of nonworking lights on the first street would be 23/n.
Now let's say there are m total lights on the second street.
The fraction of nonworking lights on the second street would be 16/m.
To find the total fractional portion, we need to add the fractions:
23/n + 16/m
Since we are told that the company wants to replace the lightbulbs in all of the nonworking lights on these two streets, we can assume that the total number of lights they need to replace is the sum of the total lights on each street.
In other words, n + m represents the total number of lights.
So, the total fractional portion of the nonworking lights on these two streets is:
(23/n + 16/m) / (n + m)