Tyler and katie started a lemonade stand to raise money. they donated \dfrac{2}{10}
10
2
start fraction, 2, divided by, 10, end fraction of their profits to their school library, \dfrac{1}{10}
10
1
start fraction, 1, divided by, 10, end fraction to the animal shelter, and \dfrac{4}{10}
10
4
start fraction, 4, divided by, 10, end fraction to the food bank. they saved the rest to buy materials for their next project.
what fraction of their profits did tyler and katie donate?