Or10 ÷1/2 ÷ (1-1/3) ÷ (1-1/4) ÷ (/kloc-)

= 10×2×3/2×4/3×5/4×6/5×7/6×8/7×9/8× 10/9

= 100

I hope I can help you. @ Math Tutoring Group # I wish you progress in your study. Please ask questions if you don't understand, and adopt them in time if you understand! (*^__^*)