Joy added two and one-half cups of broth to her pot of soup. If the result was six and seven-eighths cups of soup, how much was in the pot to begin with?
(6 + 7/8) - (2 + 1/2) =
(55/8) - (5/2) =
(55/8) - (20/8) =
(35/8) =
4 + 3/8 cups
