Question

find the smallest decimal number by which 1638.4 has to be divided to make it a perfect cube

Answer 1

Answer:

The smallest decimal number is 1.2309

Step-by-step explanation:

Let us find the nearest cube number to 1638.4

11³ =1331

12³=1728

As 11³ is less than the number and 12³ is greater than the number 11³ is the cube number which is less than and nearer to the given number

Let the number we neeeded to multiply be x.

1638.4÷ x= 1331

x=1638.4÷1331

x=1.2309