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2014-08-09T14:05:51+03:00
0,2=2/10=1/5

1/5/37/10= 1/5 * 10/37=  2/37

2 intregi 2/3= 8/3

3,5=3 intregi 5/10=  3 intregi 1/2= 7/2

2/37= x/30 * (8/3+7/2)  aducem la acelasi numitor in (...)

2/37 =x/30 * (16+21)/6

2/37 =x/30 * 37/6

2/37= 37x/30*6

2/37= 37x/180

37x= 180*2/37

x= 180*2/37/37

x=360/1369