n
a
b
1
3
4
1
8
2
1
3
1
9
3
2
3
1
6
4
2
5
1
10
5
1
2
3
10
6
1
3
2
9
7
4
5
1
10
8
2
5
1
5
9
5
10
3
10
10
3
8
1
8
11
1
2
1
6
12
3
10
1
5
13
2
5
3
10
14
2
5
1
10
15
1
4
1
8
16
2
3
1
9
17
2
3
1
6
18
4
6
1
3
19
1
3
1
6
20
2
5
1
10
21
1
3
1
6
22
3
5
1
5
23
5
9
1
3
24
3
4
1
2
25
5
8
1
4
26
4
9
1
3
27
4
5
3
5
28
9
10
6
10
29
1
2
1
6
30
2
5
1
5
31
3
8
2
8
32
3
4
1
2
33
7
8
3
4
34
2
3
1
6
35
8
10
2
5
36
1
3
1
6
37
3
5
1
10
38
2
4
1
8
39
3
8
1
4
40
7
10
2
5
41
5
8
1
4
42
5
6
1
2
43
1
4
1
8
44
3
4
3
8
45
6
9
1
3
46
2
5
1
10
47
4
5
3
10
48
5
9
1
3
49
7
10
1
10
50
1
2
1
4
51
5
8
2
4
©Ms. Garcia Math
Name:
ID:
Quiz:
Grade:
Subtracting Mixed Numbers
?
Convert to Improper Fractions and subtract
1)
-
=
2)
-
=
3)
-
=
4)
-
=
5)
-
=