={1-<3/24+16/24>}*36
={1-19/24}*36
=5/24*36
=15/2
(6/13+9/31-12/41)÷(2/13+3/31-4/41)
=3*(2/13+3/31-4/41)÷(2/13+3/31-4/41)
=3
=3/4X4X4/3X4
=(3/4X4/3)X(4X4)
=1X16=16
24×36÷8=24÷8×36=3×36=108
1/17*16/36+17/16?
1/(17*16)/36+17/16?
(1/17)*(16/36)+17/16?
(5/12+5/8)*24
=5x2+5x3
=5x5
=25
1/15x8+1/3x2+2/15x6
=1/15x8+1/15x10+1/15x12
=(8+10+12)x1/15
=30x1/15
=2
(3.6×1又2/5×4)÷(0.35×1.8×1/2)
=(18/5*7/5*4)÷(7/20*9/5*1/2)
=18/5*7/5*4*20/7*5/9*2
=(18*7*4*20*5*2)/(5*5*7*9)
=64
最后一步约分即可
1/2÷1/4×(8+2/3)
=1/2÷1/4×8又2/3
=1/2×4×8又2/3
=2×26/3
=自己算了
你的963应该是有问题的,最好重新确认下,我觉得应该是1023
=1/2*(1-1/3)+1/2*(1/3-1/5)+1/2*(1/5-1/7)+…+1/2*(1/31-1/33)+1/2*(1/33-1/35)
=1/2*(1-1/3+1/3-1/5+1/5-1/7+…1/31-1/33+1/33-1/35)
=1/2*(1-1/35)
=17/35