-2/3.(2/18+-6/12-3/33)
-3/5+8/5.(43/56+5/24-21/63)
(9/10-15/16).(5/12-11/5-7/20)
(11/4.-5/9-4/9.11/4).8/33
3/10.(-5/9+3/5)-3/10.(3/9+-2/5)
/ là gạch phân số . là giấu chấm
-2/3.(2/18+-6/12-3/33) -3/5+8/5.(43/56+5/24-21/63) (9/10-15/16).(5/12-11/5-7/20) (11/4.-5/9-4/9.11/4).8/33 3/10.(-5/9+3/5)-3/10.(3/9+-2/5) / là gạch p
By Katherine
1)=-103/297
2)3/7
3)=2/25
4)=2/27
5)=-31/150
-2/3.(2/18+-6/12-3/33)=-103/297
-3/5+8/5.(43/56+5/24-21/63)=3/7
(9/10-15/16).(5/12-11/5-7/20)=2/25
(11/4.-5/9-4/9.11/4).8/33=2/27
3/10.(-5/9+3/5)-3/10.(3/9+-2/5)=-31/150