5 1/4*2 2/7-7,05 12-7,05 4,95 4,95
= ------------------------------------- = ----------------------------- = ---------------- = -------- =
(3,06-2,7):0,06*2 2/3-15,45 0,36:0,06*2 2/3-15,45 6*8/3-15,45 16-15,45
4,95
= ------ = 9
0,55
________________________________________________________
(18,605-2,05*9,06)*22,5 (18,605-18,573)*22,5 0,032*22,5 0,72
= -------------------------------- = ---------------------------- = ---------------- = ------ = 36
4 1/12:2 1/24*0,01 49/12*24/49*0,01 2*0,01 0,02