[Graphs generated by this script: initPicture(0,420,0,100);rect([30,10],[390,20]);fill="gold";rect([30,10],[30+60*5,20]);rect([30,10],[30+60,20]);rect([30+60,10],[30+60*2,20]);rect([30+60*2,10],[30+60*3,20]);rect([30+60*3,10],[30+60*4,20]);rect([30+60*4,10],[30+60*5,20]);fill="white";rect([30+60*5,10],[30+60*6,20]); fill="gold";rect([30,30],[390,40]);rect([30,30],[30+60,40]);rect([30,30],[30+60,40]);rect([30+60,30],[30+60*2,40]);rect([30+60*2,30],[30+60*3,40]);rect([30+60*3,30],[30+60*4,40]);rect([30+60*4,30],[30+60*5,40]);rect([30+60*5,30],[30+60*6,40])]

If both big rectangles together represent "one whole", what fraction of area is shaded gold in the two rectangles?