Question

18分之17—10分之9×9分之2 12分之7×14分之9－9分之2 11分之23×（4分之22×3分之1－46分之77）

Answer 1

17/18-9/10×2/9
=17/18-1/5
=(85-18)/90
=67/90

7/ 12×9/14－2/9
=(7x9)/(12x14)-2/9
=3/8-2/9
=11/72

23/ 11×（22/4×1/3－77/46）
=23/11x22/4x1/3-23/11x77/46
=23/6-7/2
=1/3

Answer 2

17/18-9/10×2/9
=17/18-1/5
=85/90-18/90
=67/90

7/12×9/14-2/9
=3/8-2/9
=27/72-16/72
=11/72

23/11×(22/4×1/3-77/46)
=23/11×(11/6-77/46)
=23/11×11/6-23/11×77/46
=23/6-7/2
=23/6-21/6
=1/3

Answer 3

90分之67、72分之11、3分之1