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1,15+ 2,4=3,55
b
2 1/3-3/4=2 4/12-9/12=1 16/12-9/12=1 7/12
c
(1,2) do potęgi 2 = 144
d
1 5/7 x 1 1/4=12/7 x 5/4=15/7=2 1/7
e
1 04 x 100=104
f
1,04:10=0,104
g
2,5 :0,125=20
i
1,9 : 2,375=0,8