Final answer:
The student's list of fractions was already in decimal form. The task was to ensure that they are expressed precisely to four decimal places, which was achieved by adding zeros where necessary.
Step-by-step explanation:
The student has been provided with a list of fractions and is asked to convert them to decimal form and then to round these decimals to four decimal places. Let's go through each one:
- I. 0.3125 is already in decimal form and is precise to four decimal places.
- II. 0.375 is already in decimal form and is precise to four decimal places.
- III. 0.3906 is already in decimal form and is precise to four decimal places.
- IV. 0.5 is in decimal form but doesn't have four decimal places. However, extending it by adding zeros gives us 0.5000.
- V. 0.75 is in decimal form but doesn't have four decimal places. Adding zeros, we would write 0.7500.
- VI. 0.8438 is already in decimal form and is precise to four decimal places.
Each of these conversions shows the fractional number in its decimal form rounded to the nearest four decimal places.