hasil dari (2 1/8 - 1 3/4) : (3 5/6 - 4 1/4)

(2 1/8 - 1 3/4 ) : (3 5/6 - 4 1/ 4)
(17/8 - 7/4 ) : ( 23/6 - 17 /4 )
(17/8 - 14 / 8 ) : ( 92/24 - 102 / 24)
(3/8 ) : ( -10/24)
3/8 x -24/10
= -9/10