Увеличение в 2 раза:1/6 2 = 2/12 = 1/63/4 2 = 6/8 = 3/45/8 2 = 10/16 = 5/81/2 2 = 2/4 = 1/2
Уменьшение в 2 раза:2/4 / 2 = 1/45/8 / 2 = 5/163/5 / 2 = 3/107/9 / 2 = 7/181/2 / 2 = 1/4
Увеличение в 2 раза:
1/6 2 = 2/12 = 1/6
3/4 2 = 6/8 = 3/4
5/8 2 = 10/16 = 5/8
1/2 2 = 2/4 = 1/2
Уменьшение в 2 раза:
2/4 / 2 = 1/4
5/8 / 2 = 5/16
3/5 / 2 = 3/10
7/9 / 2 = 7/18
1/2 / 2 = 1/4