Question

11÷8+1/8×6/17 (1/4+1/6-1/8)x24 30×7/10+30×2/15

5/6×1/13+5/9×2/13+5/18×6/13
怎样简便就怎样算

Answer 1

解：
有：11÷8+(1/8)×(6/17)=(11/8)+(1×6)/(8×17))
=[(11×17)/(8×17)]+[6/(8×17)]=(187+6)/(8×17)
=193/136
[(1/4)+(1/6)-(1/8)]×24=(1/4)×24+(1/6)×24-(1/8)×24
=6+4-3=7
30×(7/10)+30×(2/15)=[(30×7)/10]+[(30×2)/15]
=[(3×7)/1]+[(2×2)/1]=21+4=25

Answer 2

1）=1/8x（11+6/17）
=1/8x193/17
=193/136
=1又57/136
2）=1/4x24+1/6x24-1/8x24
=6+4-3
=7
3）=3x7+2x2
=25

追答

4）=5/13x（1/6+2/9+1/3）
=5/13x（3/18+4/18+6/18）
=5/13x13/18
=5/18