1)
(11/26+11/13)*17/6=11/26+11/13=11/26+22/26=33/26*17/6=33*17/26*6=561/156=187/52=3 31/52
2)
6,4-4,8=1,6
3)
(9*10-во второй степени)в квадрате*(11*10 в 5 степени)=0,0081*1100000=8910
4)8,1*7,2=58,32
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Answers & Comments
1)
(11/26+11/13)*17/6=11/26+11/13=11/26+22/26=33/26*17/6=33*17/26*6=561/156=187/52=3 31/52
2)
6,4-4,8=1,6
3)
(9*10-во второй степени)в квадрате*(11*10 в 5 степени)=0,0081*1100000=8910
4)8,1*7,2=58,32