Đáp án+Giải thích các bước giải:
`g)-(3 1/2-2):(-4)+1`
`=(3+1/2-2):4+1`
`=(1+1/2):4+1`
`=3/2:4+1`
`=3/8+1`
`=11/8`
`h)-3:(-1 2/3-1)-2`
`=3:(1 2/3+1)-2`
`=3:(5/3+1)-2`
`=3:8/3-2`
`=9/8-2`
`=-7/8`
`i)-(2 1/4-1):(-5)`
`=(2 1/4-1):5`
`=(2+1/4-1):5`
`=(1+1/4):5`
`=5/4:5`
`=1/4`
`k)-(3 2/3+4 1/2)-3 1/5`
`=-(3+2/3+4+1/2)-(3+1/5)`
`=-(7+7/6)-3-1/5`
`=-7-7/6-3-1/5`
`=-10-41/30`
`=-341/30`
`l)3 1/2+15 4/9:26/7-2 4/9:3`
`=7/2+139/9*7/26-22/9:3`
`=7/2+973/234-22/27`
`=2402/351`
`m)(2 3/5-3 5/9):3 10/21-1`
`=(13/5-32/9):73/21-1`
`=-43/45:73/21-1`
`=-301/1095-1`
`=-1396/1095`
