Answer:
1/2 ,2/3,3/4,5/8,4/5. 1/20. 5/8
Explanation:
There are a lot of ways you can solve the first one, but I chose this way:
I visualized the fraction. It can help you get a sense of size more quickly and perhaps easier . But I don't recommend to use it during exams , so you will have to learn from somebody else another way !!!!
Srry about the messy sketches, I hope you understood the way I solved it. If not, feel free to ask questions!