Есть рамки-вкладыши "Дроби" http://images.yandex.ru/yandsearch?text=%D1%80%D0%B0%D0%BC%D0%BA%D0%B0-%D0%B2%D0%BA%D0%BB%D0%B0%D0%B4%D1%8B%D1%88%20%D0%B4%D1%80%D0%BE%D0%B1%D0%B8&p=8&img_url=www.doshkoly.ru%2Fpublished%2Fpublicdata%2FDOSHKOLYDS%2Fattachments%2FSC%2Fproducts_pictures%2Fgeometria-kvadrat_enl.jpg&rpt=simage и http://images.yandex.ru/yandsearch?text=%D1%80%D0%B0%D0%BC%D0%BA%D0%B0-%D0%B2%D0%BA%D0%BB%D0%B0%D0%B4%D1%8B%D1%88%20%D0%B4%D1%80%D0%BE%D0%B1%D0%B8&p=14&img_url=www.rich-toys.ru%2Fcat_images%2F58%2F58819.jpg&rpt=simage