<span>0.2=2/10=1/5;</span>
<span> 0.8=8/10=4/5</span>
<span>0,15=15/100=3/20;</span>
<span> 0.24 = 24/100 = 6/25</span>
<span>0.35=35/100=7/20</span>
<span>0.75=75/100=3/4</span>
<span>0.05=5/100=1/20</span>
<span>0.125=125/1000=1/8</span>
<span>0.025=25/1000 = 1/40</span>
<span> 0.008=8/1000=1/125</span>
<span>0.375=375/1000=15/40</span>
4,6x+3,8x=0,5+1,6
8,4=2,1
x=0,25
55%=55/100=0,55
230*0,55=<em>126,5г</em>