There are 2 cups in a pint
and 2 pints in a quart therefore there are 2 times 2 =4 cups in a quart
Then
52color(white)(l)"cups" times (1color(white)(l)"quart")/(4color(white)(l)"cups")=(52cancel("cups")times1color(white)(l)"quart")/(4cancel("cups"))
=52/4color(white)(l)"quarts"=13color(white)(l)"quarts"