Răspuns :
(7/2+31/6-19/4):11/3x2/5=
(42/12+62/12-57/12):11/3x2/5=
47/12x3/11x2/5=
47/44x2/5=
47/110
(42/12+62/12-57/12):11/3x2/5=
47/12x3/11x2/5=
47/44x2/5=
47/110