In mathematics, we often need to convert a number into another form. This paper will introduce a method to convert 28.5625 into 130.2 1, in which the integer part is divided by 4 and the decimal part is multiplied by 4.

4 division and remainder method

Divide 28 by 4 to get quotient 7 and remainder 0. Therefore, the integer part of 28 is 7.

4 times integer method

0.5625 times 4 gives 2.25. Therefore, the fractional part of 28.5625 is 0.2 1.

Conversion result

Based on the above two steps, we can get that 28.5625 is converted into 130.438+0.