2/3的2019次方×3/2的2020次方=(2/3×3/2)的2019次方×3/2=1的2019次方×3/2=3/2
(2/3)^2019×(3/2)^2019×3/2=(2/3×3/2)^2019×3/2=3/2
(2/3)的2019次方乘以3/2的2020次方等于3/2