3/8 + 2/8 = _______
4/9 + ________ = 7/9
5/12 + 3/12 = _______
2/5 + ________ = 4/5
1/6 + 4/6 = _______
3/10 + ________ = 9/10
2/3 + 1/3 = _______
5/11 + ________ = 8/11
1/2 + 1/2 = _______
3/8 + 2/8 = _______
4/9 + ________ = 7/9
5/12 + 3/12 = _______
2/5 + ________ = 4/5
1/6 + 4/6 = _______
3/10 + ________ = 9/10
2/3 + 1/3 = _______
5/11 + ________ = 8/11
1/2 + 1/2 = _______