Marianne, arlene, tyler, and i worked together to complete a group project. marianne completed 1/5 marianne, arlene, tyler, and i worked together to complete a group project. marianne completed 3/10of the project. tyler and i finished the project and each did the same amount of work. what fraction of the project did i complete? a. 1/5 b. 1/10 c. 1/2 d. 1/4