Troubleshooting

I think the problem comes when you modify the original ratio given in the question.

The original ratio is 2:3 but you converted it to 1X: 1.5X.

As a result the L7 will not work.

If you recall all this time when I taught you all L7, I never modify the ratio, percentage or fractions in the question, am I right? I always take it as it is because this reduces confusion.

In conclusion your 'Draw' stage is wrong.