(1/4)²=1/16
(3/8)²=9/64
(5/6)²=25/36
(2/7)²=4/49
(1 1/2)²=(3/2)²=9/4
(4 1/9)²=(37/9)²=1369/81
(6 2/3)²=(20/3)²=400/9
(1/2)³=1/8
(2/3)³=8/27
(1/5)³=1/125
(4/9)³=64/729
(1 1/3)³=(4/3)³=64/27
(2 1/4)³=(9/4)³=27/64
(3 1/2)³=(7/2)³=343/8
(1/4)²=1/16
(3/8)²=9/64
(5/6)²=25/36
(2/7)²=4/49
(1 1/2)²=(3/2)²=9/4
(4 1/9)²=(37/9)²=1369/81
(6 2/3)²=(20/3)²=400/9
(1/2)³=1/8
(2/3)³=8/27
(1/5)³=1/125
(4/9)³=64/729
(1 1/3)³=(4/3)³=64/27
(2 1/4)³=(9/4)³=27/64
(3 1/2)³=(7/2)³=343/8