In detail

Do you know how to count fractions?

Do you know how to count fractions?

What is half of the two thirds of the three quarters of the four fifths of the six seventh of the eighth of the eight ninth of the nine tenths of 1,000?

Solution

It is 100. We will do the calculation backwards, starting at the end of the problem:

9/10 x 1000 = 900
8/9 x 900 = 800
7/8 x 800 = 700
6/7 x 700 = 600
5/6 x 600 = 500
4/5 x 500 = 400
3/4 x 400 = 300
2/3 x 300 = 200
1/2 x 200 = 100