Ineed to know the answer how this indicated operation is performed, and then written in the lowest terms.
-8/9+11/15=

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out