Combien ça fait : B=8/3-8/3x9/16

8/3  -8/3 x9/16
8/3 - 8/3x 3x3/8x2
8/3 - 3/2
16/6-9/6
7/6

B=8/3-(8x16/3x16)x(9x3/16*3)
B=8/3-128/48x18/48
b=8/3-2304/48
b=8x16/3x16 -2304/48
b=64-2304/48
b=-2240/48