(
1
/
3
)
+
(
____________________
/
____________________
)
=
(
40
/
15
)
(
4
/
3
)
-
(
8
/
7
)
=
(
____________________
/
____________________
)
(
1
/
2
)
+
(
5
/
9
)
=
(
____________________
/
____________________
)
=
(
3
/
9
)
=
(
____________________
/
____________________
)
(
____________________
/
____________________
)
(
2
/
4
)
=
(
16
/
4
)
=
____________________
(
9
/
3
)
-
(
5
/
3
)
=
(
____________________
/
____________________
)
(
3
/
5
)
+
(
4
/
7
)
=
(
____________________
/
____________________
)
