In mathematics, to find the fraction of a number is to multiply this number by this fraction. It means to divide a number into several equal parts and then take one of them.

If this number is an integer and the integer is multiplied by the fraction, it means that the denominator is unchanged first, then the numerator is multiplied by the integer, and the final offer score that can be reduced must be paid attention to. If you don't reduce it, you will lose points.

If this number is a fraction, the fraction is multiplied by the fraction, the fraction is multiplied by the fraction, the numerator of the fraction is multiplied by the numerator to get the numerator of the product, and the denominator is multiplied by the denominator to get the denominator of the product.