1)48*35+20 1700
---------------- = ----------= 1
45*37+35 1700
2)731:17+2109:37 100
------------------------ = --------- =1
3942:54+1755:65 100
3)1-1=0
Ответ:1
1)53*35-221 1634
---------------- = -------------
646:17 38
2)46*64-1306 1638
------------------- = -----------
702:18 39
3)16807:7 2401
---------------= -------- =1
343*7 2401
4)1634 1638 -4
------------ - ----------- = --------
38 39 -1
5)-4 1 -5
--------- + -----= ------ = -5
-1 1 0