(-1⅔)²=(-5/3) × (-5/3) = 25/9= 2 7/9
½ × 2⁹ = ½ × 512 = 256
(3⁴×9)/27=(81×9)/27=729/27=27
(¼)² × 8² = 1/16 × 64 = 4
3 × a² × b)³ = 3³ × (a²)³ × b³ = 27 × a⁶ × b³ = 27a⁶b³
