解:先利用“幂的乘方”将3/5次方变成 3次方与1/5次方相乘,最后一步要将分母有理化。
(2/3)^3/5=[(2/3)³]^1/5 ...........................利用“幂的乘方”
=(2³/3³)^1/5
=(2³×3²/3³×3²)^1/5 ..........................分子分母同乘3²
=[72/3﹙³﹢²﹚]^1/5 ..........................分母变成5次方
=[(72)^1/5]/3 ...........................分母有理化