Đáp án:
`2`
Giải thích các bước giải:
`(1+1(1)/4+ 1(1)/2 +1(3)/4+ 2 +2(1)/4+ 2(1)/2 + 2(3)/4+....+4(3)/4):23`
`=[(1+2+3+4)+(1(1)/4+1(1)/2+1(3)/4+2(1)/4+2(1)/2+2(3)/4+...+4(3)/4):23`
`=[10+(1(1)/4+1(3)/4+2(1)/4+2(3)/4+3(1)/4+3(3)/4+4(1)/4+4/(3)/4)+(1(1)/2+2(1)/2+3(1)/2+4(1)/2)]:23`
`=[10+(5/4+7/4+9/4+11/4+13/4+15/4+17/4+19/4)+(3/2+5/2+7/2+9/2)]:23`
`=[10+24+12]:23`
`=46 : 23`
`=2`
