1 3 х 7 18 July 8, 2019 16 32 64 128 1 3 x 7 18 1 3 7 18 1 /( х 3 2 7 х 3 18 0 1 3 7 18 as a fraction 3 1 2x )-( x 18 )= 7 1 3/7 х 14 1 3/7 х 2 1/3