a)
1,4 = 1,4 * 100% = 140%
0,08 = 0,08 * 100% = 8%
0,35 = 0,35 * 100% = 35%
b)
4/400 = 1/100 * 100% = 1%
7/25 = 28/100 * 100% = 28%
3/5 = 60/100 * 100% = 60%
c)
1,2 = 1,2 * 100% = 120%
1 8/200 = 1 4/100 * 100% = 1,04 * 100% = 104%
2 1/4 = 2 25/100 * 100% = 2,25 * 100% = 225%