1) 3 + 1/2 = 3 1/2,
2) 7 / (3 1/2) = 7 : 3 1/2 = 7 : 7/2 = 7 * 2/7 = 2,
3) 4 + 2 = 6,
4) 1 : 6 = 1/6,
5) 5 + 1/6 + 5/6 = 5 + 6/6 = 5 + 1 = 6,
ответ: 6
1/3 + 2/5 : 3/35 = 1/3 + 2/5 * 35/3 = 1/3 + 14/3 = 15/3 = 5
1) ( 62 + 6 ) : 2 = 34 ( см ) длина
2) 34 - 6 = 28 ( см ) ширина
3) 34 • 28 = 952 ( см2 ) площадь