Найдем ширину: 8 5/8 / 2 1/6= 8x8+5 /8 : 2x6+1 /6=69/8 : 13/6=69x6/8x13=414/104 сокращ. на 2=207/52=3 51/52.
Найдем P=2x(8 5/8+3 51/52)=8 5/8+3 51/52=(НОК=104)=2(414/104+897/104)=2x1311/104=2622/104=25 22/104=25 11/52. (P).
Найдем S=8 5/8x3 51/52=8x8+5/8 x 3x52+51/52=207/52x69/8=14283/416=139+34x416/416=34 139/416. (S).