5/8*1/2*4/5=1/42/3÷4/9*3/10=2/3x9/4x3/10=9/205/6*4/5÷1/2=5/6x4/5x2=4/3(3/4-5/12)*24= 3/4x24-5/12x24=18-10=8(1/2+1/6)÷1/12=1/2x12+1/6x12=6+2=8