(1- 7/9)razy (5,2-0,7) =
123:10 + 0,2 razy 6,1=
(6,5-4,7):(4-2 1/5 ) =
(1,5 - 1 1/3)razy 2 2/5 - 0,1 =
(6,25-2 1/2) : 2 1/7 - 1 =
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(1- 7/9)razy (5,2-0,7) =3/9*4,5=4całe i 1/6
123:10 + 0,2 razy 6,1=12,3+1,22=13,52
(6,5-4,7):(4-2 1/5 ) =1,8/1,8=1
(6,25-2 1/2) : 2 1/7 - 1 =3,75/2=1,875