What is the significance of the four operations of fractions?

The meanings of the four operations include: the meaning of addition, the meaning of subtraction, the meaning of multiplication and the meaning of division.

The operation of combining two numbers into one number, the operation of combining two decimals into one decimal, and the operation of combining two fractions into one fractional.

Subtraction knows the sum of two addends and one of them, the operation of finding the other addend knows the sum of two addends and one of them, the operation of finding the other addend knows the sum of two addends and one of them, and the operation of finding the other addend.

A simple operation to find the sum of several identical addends by multiplication. The meaning of decimal multiplication by integer is the same as that of integer multiplication.

Multiplying a number by a pure decimal means finding a few tenths and a few percent of this number ... The meaning of multiplying a fraction by an integer is the same as that of integer multiplication.

Multiplying a number by a fraction is to find a fraction of this number.

Division knows the product of two factors and one of them, and the operation of finding the other factor has the same meaning as integer division.