Răspuns:
Explicație pas cu pas:
a)
2²/₅=(2*5+2)/5=12/5
7¹/₂= (7*2+1)/2=15/2
-
35⁽⁵/48⁽⁸*32⁽⁸/25⁽⁵-12⁽³/5*2/15⁽³ +4/5 =
= se simplifica 35 si 25 prin 5 ......32 si 48 prin 8 ....12 cu 15 prin 3
= 28/30-8/25 +4/5
= ³⁾14/15-8/25+⁹⁾4/5
=⁵⁾14/15-³⁾8/25+¹⁵⁾4/5
= 70/75- 24/75+60/75
= 106/75
b)
1⁴/₅=(1*5+4)/5=9/5
4¹/₁₁=(4*11+1)/11=45/11
-
57/50-9⁽⁹/5*11/45⁽⁹ -15⁽⁵/16⁽⁴*12⁽⁴/25⁽⁵
= ²⁾57/50-⁴⁾11/25 -⁵⁾9/20
= 114/100-44/100-45/100
= 15/100
