(2) Today, my mother gave me 10 yuan for breakfast, and I spent 3/5 on 6 yuan, leaving 2/5.

There are four quarters in a year, and by the end of September, three-quarters of the whole year has passed.

④ A book has 120 pages. I have read 1/2, but I have read 60 pages.

If you are satisfied, please accept it. Thank you.