Multiply a number by a fraction greater than 1, and the product is greater than this number.

Multiply a number by a fraction equal to 1, and the product is equal to this number.

Multiply a number by a fraction less than 1, and the product is less than this number.

Extended data:

1, when a fraction is multiplied by an integer, the product of the numerator of the fraction multiplied by the integer is taken as the numerator, and the denominator remains unchanged. Make an appointment if you can.

2. When a fraction is multiplied by a fraction, the product multiplied by the numerator is the numerator and the product multiplied by the denominator is the denominator. If the score can be lowered, you can lower the score first.

3. When a fraction is multiplied by a decimal, you can convert the fraction into a decimal, or you can decompose the decimal into components and simplify the fraction first.

Baidu encyclopedia-fractional multiplication