The analysis result is: make 4/9 of the first result and 2/3 of the latter result have the same denominator. The denominator of 4/9 and the denominator of 2/3 were originally 9, but they needed numerators, so they could only find 36 as the denominator. Then 4 of 9 becomes 16 of 36, because the result is obtained by adding 5 to the numerator, so it is good to subtract 5 from the result, because addition and subtraction can only be done if the denominator is the same, so it should be 16 of 36 minus 5 of 36 to get the original score 1 1.

Similarly, the two-thirds change is 24 of 36 minus 13 of 36, and the result is 1 1 of the original score of 36.

4*4 16 5 1 1

—— = —— - —— = ——

9*4 36 36 36

2* 12 24 13 1 1

—— = —— - —— = ——

3* 12 36 36 36

The two conclusions are that the original score is 36 points of 1 1.