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2014-04-14T16:10:43+03:00
A/8=b/3=k
a=8k   b=3k

8k+3k/2*8k+3*3k=11k/16k+9k=11k/25k=11/25
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2014-04-14T17:06:35+03:00
A/8=b/3=x
a=8x
b=3x
 
a+b=11x
2a+3b=25x

(a+b)/(2a+3b)=11x/25x=11/25
1 5 1