(231/5)=
(10/7)+(1/49)-(6/98)=
(832/5)=
(4/100)-(2/50)+(6/5)=
(14/8)+(3/5)-(10/40)=
(367/4)=
(144/-9)=
(7/10)-(8/2)-(16/20)=
91,75
-41/10
-16
21/10
68/49
46,2
6/5
166,4
