15 3 4 x 12 July 8, 2019 16 32 64 128 15 3 4 x 12 frame 15 3 4 x 12 1 2 3 4 x 12 15 as a fraction 15 5 x 4 )=- 12 3 3 4 x 1 )= 12x 15 15 4 7 12 x 3 28 7x 15 3 x 12 )+ 4 x 1 2 3 x 3 4 x 12 15 12 x 4 15 3 7 10 4 3 19 x 15 12 12 15 3 x 6 4 3 4 5 12 x 16 15 3 x 4 )- 123 15