简算 1*1/3+1/3*1/5+1/5*1/7+……+1/97*1/99+1/99*1/101

简算:1/(1*3)+1/(3*5)+1/(5*7)+……+1/(99*101)= 1/1*3+1/3*5+1/5*7+……+1/97*99+1/99*101 1×2／1＋2×3／1＋3×5／1＋5×7／1﹢…﹢97×99／1＋99×101／1简算 1*1/3+3*1/5+5*1/7+.+97*1/99+99*1/101= 1/(1×3)+1/(3×5)+1/(5×7).+1/(97×99)+1/(99×101) 1/1*3+1/3*5+1/5*7……1/97*99= 1.计算：1/1*3+1/3*5+1/5*7+……+1/99*101 1/3×1/5+1/5×1/7+1/7×1/9+……+1/97×1/99 1×1/3+1/3×1/5+1/5×1/7+……+1/99×1/101 1/3*5+1/5*7+1/7*9+……1/97*99 1/(1+3)+1/(3+5)+1/(5+7)…+1/(99+101)=( )简便计算 1/1×3+1/3×5+1/5×7+…+1/99×101 等于多少啊