5 6 x 15 10 July 8, 2019 16 32 64 128 7 15 5 6 x 9 10 5 x 6 )- 2 x 10 )= 15 6 3 5 x 15 10 6 5 x 5 4 10 15 5/6 = 15/x 15 x 6
