Răspuns :

Miky93id
[tex]\frac{a}{b}= 1,2=1 \frac{2}{10}= 1\frac{1}{5}= \frac{5}{6} \\ \\ \frac{a}{5}= \frac{b}{6}=k \\ a=5k \\ b=6k \\ \\ b-a=17 \\ 6k-5k=17 => k=17 \\ \\ a=5*17 => \boxed{a=85} \\ \\ b=6*17=>\boxed{b=102}[/tex]
Pingoid
a:b=1,2 => a=6b:5
1,2=[tex]1 \frac{1}{5} = \frac{6}{5} [/tex]
a-b=17 => 6b supra 5- 5b supra 5=17|*5
b=85 si a= 6*17=102

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