What is 9/9 of 100?
Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 9/9 of 100? We'll show you a straightforward method to achieve that.
How to calculate 9/9 of 100?
- Multiply the whole number by the numerator of the fraction: 100 × 9 = 900
- Divide this result by denominator of the fraction: 900/9 = 100
- Simplify by dividing both the numerator and denominator by their GCD (9):
- 900/9 = 100
- 9/9 = 1
- Which gives: 100/1
How does it work?
The principle behind finding a fraction of a number, such as 9/9 of 100, is rooted in the method of cross-multiplication.
Consider the following proportion: (where x represents 9/9 of 100)
- Using the cross-multiplication method, multiply both numerators by their opposite denominators:
- Which gives:
- Divide both sides by 9 to isolate x:
- Which gives the result: (or )
Thus, 9/9 of 100 is equal to 100/1 (or 100 in its decimal form).