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b)1-(3/4)do potengi 2=1-9/16=7/16
C)1+3/7 : 1/7= 1 +3/7 *7/1 =1+3 =4
d)(0,6+0,9) : 3=1,5 :3 =0.5
e)10* (0,5+1/4)=10*3/4 = 30/4 =7 1/2 (7 i jedna druga)
F)0,3+0,5 *4=0.3+2=2,3
g) 1/2 * 3/4 - 0,5 * 0,75= 3/8 - 3/8 = 0
h)(1-(0,1)do potengi 2) :9=(1-0.01):9 =0.99 :9 =0.11
i)(0,1 + 0,1 * 15 ) *10=(0.1 +1,5) *10=1,6 *10 =16