8/10=0,8=80%
125/100=1,2=125%
13/25=52/100=0,52=52%
<em>17/20=85/100=0,85=85%</em>
4/3=1,33=133%
Ответ:
x + 16 = 74
x = 74 - 16
x = 58
x - 34 = 21
x = 21 + 34
x = 55