Mary’s tube of red paint is five sevenths full and her blue paint is four sevenths full. How much red and blue paint does Mary have in total? Use the benchmark fraction one half, 1, and 0 to help you estimate each answer before you solve.
one seventh tube
seven ninths tube
one and two sevenths tubes
one and one seventh tubes PLEASE HELP! (Ill give brainnliest!!)
How much red and blue paint does Mary have in total?