9/8-(-11)/8 ; -1/2 -5/2;. 4/3-7/3 ; 3/-5 – (-8)/10;
5/7-(-3)/21 ; 4/(-3) -9/27 ; 7/29 -9/29 ; -7/22-9/22 ;-23/7 – 31/7
Giúp tui với ạ ????
9/8-(-11)/8 ; -1/2 -5/2;. 4/3-7/3 ; 3/-5 – (-8)/10;
5/7-(-3)/21 ; 4/(-3) -9/27 ; 7/29 -9/29 ; -7/22-9/22 ;-23/7 – 31/7
Giúp tui với ạ ????
Đáp án: Học tốt!
`9/8-(-11)/8=20/8=5/2`
`-1/2 -5/2=-6/2=-3`
`3/-5 – (-8)/10=-6/10-(-8)/10=14/10=7/5`
`4/(-3) -9/27=-4/3-1/3=-3/3=-1`
` 7/29 -9/29=-2/29`
`-7/22-9/22=-16/22=-8/11`
`-23/7 – 31/7=-54/7`