Generally speaking, the unit of fractional rate and 1 is divided, and the quantity (comparison quantity) corresponding to fractional rate is multiplied.
The key to solve this kind of problem is to find out the unit 1 accurately first, then find out the score corresponding to the comparison quantity, and then determine the calculation method. Examples are as follows:
The actual investment is 37.6 million yuan, less than the planned investment 1/9. How much do you plan to invest?
Analysis: Find the unit less than (greater than) … followed by the fraction, and … is 1 therefore
Planned investment (? ) corresponds to cell 1
Planned investment-actual investment correspondence 1/9.
The actual investment (37.6 million yuan) corresponds to 1- 1/9.
Formula: 3760( 1- 1/9)
It is better to draw a line diagram to show this kind of problem intuitively, which is easier for students to accept. I just started to contact the internet, so I can't show it here. I'm very sorry, I smiled. Good luck with your work.