Question

(六点二五除一又八分之一减一又六分之五)乘三分之二简算

Answer 1

(六点二五除一又八分之一减一又六分之五)乘三分之二
=（25/4÷9/8-11/6）x2/3
=(50/9-11/6)X2/3
=(100/18-33/18)X2/3
=67/18X2/3
=134/54

Answer 2

(六点二五除一又八分之一减一又六分之五)乘三分之二
=[(1+1/8)÷6.25-(1+5/6)]x2/3
=[(9/8)÷(25/6)-11/6)]X2/3
=[(9/8X6/25-11/6)X2/3
=[27/100-11/6]X2/3
=[81/300-550/300]X2/3
=-469/300X2/3
=-469/450
=134/54