Help out the mixed calculation problem of three digit fraction addition and subtraction It must be three digit, with addition and subtraction, not too difficult, for example, 6-7-2-7 + 1-7 The more the better, the more bonus points
1/4+2/4-3/4
3/5-2/5+1/5
5/6-1/6+1/3
3/7+4/7-2/7
1/8+5/8-3/8
5/9-2/9+3/9
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