Write 55/12 as a decimal. If necessary, use a bar to indicate which digit or group of digits repeats.
Understand the Problem
The question is asking us to convert the fraction 55/12 into a decimal form and to indicate if there are any repeating digits using a bar notation.
Answer
The decimal form of $ \frac{55}{12} $ is $ 4.58\overline{3} $.
Answer for screen readers
The decimal representation of $\frac{55}{12}$ is $4.58\overline{3}$.
Steps to Solve
-
Perform the Division To convert the fraction $\frac{55}{12}$ into decimal form, we need to perform the division of 55 by 12.
-
Calculate Whole Number Part When we divide, we first find how many times 12 fits into 55. $$ 55 \div 12 = 4 \text{ (whole number part)} $$
-
Calculate the Remainder After subtracting, we find the remainder. $$ 55 - (12 \times 4) = 55 - 48 = 7 $$
-
Perform Long Division for Decimal Now, we add a decimal point and continue the division by adding zeroes to the remainder. We bring down a zero (making it 70) and divide again. $$ 70 \div 12 = 5 \text{ (next digit)} $$
-
Find New Remainder Now, we calculate the new remainder. $$ 70 - (12 \times 5) = 70 - 60 = 10 $$
-
Continue Long Division Again, we bring down a zero (making it 100) and divide. $$ 100 \div 12 = 8 \text{ (next digit)} $$
-
Calculate Next Remainder Calculate the remainder once more. $$ 100 - (12 \times 8) = 100 - 96 = 4 $$
-
Repeat Process Bringing down another zero (making it 40) and divide again. $$ 40 \div 12 = 3 \text{ (next digit)} $$
-
Calculate New Remainder Again $$ 40 - (12 \times 3) = 40 - 36 = 4 $$
Now, we notice that the remainder returns to 4, meaning the digits will repeat.
- Final Decimal Representation The repeating digits are "3", so we can write the decimal as: $$ 4.58333... = 4.58\overline{3} $$
The decimal representation of $\frac{55}{12}$ is $4.58\overline{3}$.
More Information
This indicates that the digit "3" repeats indefinitely. The fraction $\frac{55}{12}$ is an example of a rational number that converts to a decimal with a repeating part.
Tips
- Not keeping track of remainders in long division can lead to incorrect results.
- Forgetting to indicate repeating digits with a bar notation.
AI-generated content may contain errors. Please verify critical information