20 questions
4/10 + 5/10 = ______
1/10
9/10
9/20
20/10
2/12 + _______ = 1
x
1/8 + 1/8 + 1/8 = ______
3/8
2/8
3/24
1/24
2/5 + 3/5 = _____
4/5
5/10
1/2
1
= ________
8/10 - 3/10 = _______
5/10
11/10
5/0
2/7
1 - ______ = 3/4
3/4
2/4
1/4
4/4
8/9 - 7/9
1/9
15/9
1/0
1/18
_________ = 5/10 - 3/10
8/10
2/10
2/20
8/20
________
___________
6
5
7
_______
_______
_________
0
________
________
______