What is 1/9 of 7?
Often, in mathematics or everyday life, we need to find a fraction of a given number. For instance, how would you quickly calculate 1/9 of 7? We'll show you a straightforward method to achieve that.
How to calculate 1/9 of 7?
- Multiply the whole number by the numerator of the fraction: 7 × 1 = 7
- Divide this result by denominator of the fraction: 7/9 = 0.77777777777778
How does it work?
The principle behind finding a fraction of a number, such as 1/9 of 7, is rooted in the method of cross-multiplication.
Consider the following proportion: (where x represents 1/9 of 7)
- 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:
Thus, 1/9 of 7 is equal to 7/9 (or 0.77777777777778 in its decimal form).