2 7 2x3 ) 4 1 6 July 8, 2019 16 32 64 128 2 7 2x3 )+ 4 1 6 2 7 2x3 )+ 4 over 1 6 2 7 2x3 )+ 4 divided by 1 6 2 1 7 4 1 6 х 2 1 3 2 3/7 х/7 3 1/7 2 3/7 х 7