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2014-09-04T16:14:53+03:00
A=20B/100=>
A=B/4

B/4 / b/4+B=
B/4/ B+4B/4=
B/4/ 5B/4=
B/4*4 /5B=  4 CU 4 SE SIMPLIFICA, B CU B SE SIMPLIFICA SI RAMANE
=1/5
2 3 2