Question

Oblicz
a). (12½-3⅓):1⁷/₁₂
b). ((∛64-√2¼×(-1⅓)²):(-⅓)³

Answer 1

A) (12*1/2-3*1/3):1⁷/₁₂=(6-1):15/12=5*12/15=12/3=4
b) ((∛64-√2¼x(-1⅓)²):(-⅓)³=(4-√2¼x(-4/3)²):-1/27=
=(4-√2¼x16/9):-1/27=(4-√9/4x16/9):-1/27=
=(4-3/2x16/9):-1/27=(4-8/3):-1/27=(4-2⅔):-1/27=
=1⅓:-1/27=4/3x(-27)=4x(-9)=-36