A pulumber is fitting a water pipe that is 3-4 foot long on to a water pipe that is 2-12 foot long how long will the finished pipe be

First, find a common denominator.

12 will work.

3/4 becomes 9/12, because 4x3=12, and 3x3=9

2/12 stays the same, because the denominator is already 12.

Now, add the two together.

9/12+2/12=11/12

The finished pipe will be 11/12 ft. long. your welcome enjoy : D