The answer to “What is 70/100 as a percentage?” is 70.00%. This number tells you how much of a whole 70 out of 100 parts represents. It’s a quick way to see the size of the fraction in everyday terms.
When you see 70/100, think of it as 70 pieces out of a total of 100 pieces. In a classroom, that could be 70 students out of a class of 100, or 70 green squares out of a board with 100 squares. The fraction and the percentage describe the same amount, just in different language.
Both forms are useful. The fraction is handy for exact math work, while the percentage makes it easy to compare with other numbers, like scores or discounts. So whether you write 70/100 or 70.00%, you’re talking about the same thing.