Which group contains numbers that all round most closely to 0?
1/5, 2/9, 0/4
3/5, 2/4, 4/7
3/4, 5/6, 7/6
1/2, 2/7, 9/10
1/5, 2/9, 0/4
3/5, 2/4, 4/7
3/4, 5/6, 7/6
1/2, 2/7, 9/10