9 7 x 15 3 3 2 July 8, 2019 16 32 64 128 9 7x 15 3 )/ 3 2 9 7 x 15 3 divided by 3 to the power of 2 9 3/7+2/7 9 3/7 x 5/22 9 3/7×5/22