What is the sum of 2/3+(-1/3)

1/3

Step-by-step explanation:

You can rewrite the equation like so:

2/3 + (-1/3)

2/3 - 1/3

The denominators are the same so you don't need to worry about that:

2/3 - 1/3 = 1/3

1/3 is your answer

Hope this helps!

2/3+(-1/3)= 0.333

Step-by-step explanation:

Because I know math

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m