*

8\ 16=3\6*9\ 18。

2\4+ 1\4. This is the same denominator. If 4 is regarded as a, 2 as b and 1 as c, it is like this: B\A+C\A=2\4+ 1\4. The same is true of addition, subtraction, multiplication and division. It would be much easier if we assimilate different denominators regardless of addition, subtraction, multiplication and division.

The formula is as follows:

Addition with different denominators: 2 \ 4+6 \18 =1\ 2+1\ 2, all of which are divided into the simplest fractions and then calculated (or multiplied by each other with the same components).

Addition with denominator: 1\2+ 1\2= molecular addition with fixed denominator.

Multiplication:1\ 2 *1\ 4 =1*1\ 2 * 4 =1\ 8, numerator multiplied by numerator, denominator multiplied by denominator.

Division: 1\2 divided by 2\4 equals 1\2 multiplied by the reciprocal of 2\4\2.