Fraction Arithmetic
5
+
3
=
8
4
1
+
1
=
4
4
9
−
1
=
10
8
7
−
1
=
12
4
5
+
2
=
6
5
11
+
7
=
12
8
1
+
1
=
6
5
1
+
3
=
8
4
7
−
5
=
8
6
3
+
5
=
4
6
7
−
5
=
9
8
1
+
5
=
2
9
5
+
2
=
6
5
1
+
3
=
3
4
1
+
1
=
8
5