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2014-05-22T21:13:54+03:00
A/b=3/10
a=3b/10

a-b=316.554
3b/10 -b =316.554  aducem la acelasi numitor
3b-10b=3. 165. 540
-7b=3.165.540
b= -452. 220

a= -3* 452.220/10
a=-3*45.222
a= -135.666
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2014-05-22T21:48:13+03:00
b:a=3:10
(a-b):a=(10-3):10
316554:a=7:10
a=316554
·10÷7
a=452220
b=452220-316554
b=135666