1) 8 5/9-(4 2/9+2 1/6)= 2)( 18 7/12 + 3 1/5) - 7 5/12
3)3 5/16+ 1/4- 2 1/16
4)3 7/9 - 1 5/18 + 3 1/2
5)(6,6:6-8,0125+2/15*0,03)*2,75
6)70,4*51,6-3541,84)* (603,48:56,4)*889,75

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