oblicz :
a ) 0,2 + 3/4 =
b ) 1/3 - 0,1 =
c ) 1/2 + 0.308 =
d ) 2,71 + 2/5 =
e ) 1/4 x 0,4 =
f ) 2/7 x 0.3 =
g ) 1 3/4 : 0,1 =
h ) 0,06 : 3/4 =
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a.0,8
b. 0,4
c. 0.808
d. 0,942
e.0,1
f. 0,87
a ) 0,2 + 3/4 = 2./10+3/4=8//40+30/40=38/40=18/20=9/10
b ) 1/3 - 0,1 = 1/3-1/10=10/30-3/30=7/30
c ) 1/2 + 0.308 =0,5+0,308=0,808
d ) 2,71 + 2/5 = 271/100+40/100=311/100=3,11
e ) 1/4 x 0,4 =1/4*4/100=4/400==1/100
f ) 2/7 x 0.3 =2/7*3/10=6/70
g ) 1 3/4 : 0,1 =7/4*10/1=70/4=17 2/4=17i1/2
h ) 0,06 : 3/4=6/100*4/3=24/300=0,24