a⁻²:a⁻⁴*a= a³
a⁻⁷*b⁻³*b*a²=a⁻⁸
x⁻²:x⁻⁴= x²
a⁻⁷:a⁻⁹=a²
(a⁻⁴)⁴:(a³)⁻⁸=a⁸
4,5⁰+2*(½)⁻¹+3(⅓)⁻²=1+4+27=32
4,8:(-2)³-4*(-1,5)⁻²=0,6-16/9=-53/45
1,5*(-0,5)²-2,5:(½)⁻²=0,375-10=-9,625
(-3,5)⁻²=4/49
(-12)⁻²=1/144
(4,7)⁻²=100/2209
-13⁻²= - 1/169
(4⅓)⁻¹=3/13
(-0,25)⁻¹=-4
-2,5⁻³=-8/125
(5,8)⁰=1
(⅔)³=8/27
(4⅓)²=169/9
-1,5*(⅓)²=-1/6
-12:(⅔)²=-27
4²*(½)³=16*1/8=2
√9/25=√3/5
√49/64=√7/8
2⅓:(-1,5)=-14/9
-4⅓:(-1,3)=10/3
5,5-4/5:2=5,1
(⅔)⁴*(¾)⁴=1/16
(⅔)⁹:(⅔)⁷=4/9
[(⅔)³*(⅔)⁷]:(⅔)⁸= 4/9
