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2)34/5=8/10-45/10:25/10= 34/5=4/5-9/2:5/2= 31/25=1 6/25
= 0,75 x 4,4 x 4,5
= 14,85
2. + - 4,5 : 250% =
+ - 4,5 : =
6,8 + 0,8 - 4,5 : 2,5 =
6,8 + 0,8 - 1,8 = 9,4