Răspuns:
Explicație pas cu pas:
[ 0,25+0,025 -(0,2) ² * (5+5*0,5)=
[25/100+25/1000- (2/10)²)*5+2,5=
[⁵⁰⁾1/4+⁵⁾1/40-²⁾4/100)*5+2,5=
[( 50+5-8)/200]*5+2,5=
(47/200*5)+2,5=
47/40+⁴⁾25/10=
47/40+100/40=
147/40
