Answer: 10.488, 13/4, 3.1415, -0.5
Explanation:
In this situation, the best way to find the number values is to convert all the numbers to fractions or decimals. Since only one number is a fraction, we'll convert it to a decimal. 13/4. 4 goes into 13 three times, and we are left with 3 and 1/4. This makes 13/4 equal to 3.25
Now our numbers are 10.488, 3.1415, -0.5, and 3.25
We can recognize that 10.488 is the largest number of them all and the only one with two digits before the decimal. 3.2 is bigger than 3.1, so the next number would be 3.25 followed by 3.1415. -0.5 is the only negative number, making it the smallest.
So, in descending order the numbers would be 10.488, 13/4, 3.1415, and -0.5
Hope that helps