0 a fraction in which there is a horizontal line with one number above it and one number below it -- 普通分數
This demonstrates the dominating position of sexagesimal fractions over common fractions.
Being an irrational number, can not be expressed exactly as a common fraction, although fractions such as 22/7 and other rational numbers are commonly used to approximate.
The common fractions are converted into 1 1 sexagesimal fractions, and the calculation is given as above.
Now multiplication and division with common fractions are explained.
What actually follows are rules for division of sexagesimal fractions (but see chapter 10.2); the division of common fractions is left until chapter 12.
It is within 0.000009% of the value of, or in terms of common fractions overestimates by less than.
Whether common fractions or decimal fractions are used is often a matter of taste and context.
Common fractions are used most often when the denominator is relatively small.
