Solve Decimal Division: 11.3 ÷ 3.8 Step-by-Step

Decimal Division with Mixed Number Results

Solve the following:

11.33.8= \frac{11.3}{3.8}=

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Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Solve the following:

11.33.8= \frac{11.3}{3.8}=

2

Step-by-step solution

To solve the problem 11.33.8 \frac{11.3}{3.8} , follow these steps:

  • Step 1: Convert 11.3 and 3.8 into fractions.
  • Step 2: Conduct the division using these fractions.
  • Step 3: Simplify and convert to a mixed number if appropriate.

Step 1: Convert 11.3 and 3.8 to fractions:
11.3=11310 11.3 = \frac{113}{10} since the decimal point signifies tenths place.
3.8=3810 3.8 = \frac{38}{10}

Step 2: Use the rule for fraction division, which is to multiply by the reciprocal:
11310÷3810=11310×1038=11338 \frac{113}{10} \div \frac{38}{10} = \frac{113}{10} \times \frac{10}{38} = \frac{113}{38} .

Step 3: Simplify 11338 \frac{113}{38} by performing the division:
113 divided by 38 gives a quotient of 2 and a remainder of 37.
Thus, 11338=23738 \frac{113}{38} = 2\frac{37}{38} .

Therefore, the division of 11.33.8 \frac{11.3}{3.8} results in 23738 2\frac{37}{38} .

Therefore, the solution to 11.33.8 \frac{11.3}{3.8} is 23738 \mathbf{2\frac{37}{38}} , which matches the second choice provided.

3

Final Answer

23738 2\frac{37}{38}

Key Points to Remember

Essential concepts to master this topic
  • Conversion Rule: Convert decimals to fractions before dividing for accuracy
  • Division Technique: Multiply by reciprocal: 11310×1038=11338 \frac{113}{10} \times \frac{10}{38} = \frac{113}{38}
  • Check Method: Convert mixed number back to decimal: 23738=2.974... 2\frac{37}{38} = 2.974...

Common Mistakes

Avoid these frequent errors
  • Dividing decimals directly without conversion
    Don't divide 11.3 ÷ 3.8 directly using long division = messy calculations and rounding errors! Direct decimal division often leads to approximations instead of exact answers. Always convert to fractions first for precise results.

Practice Quiz

Test your knowledge with interactive questions

Solve the following exercise:

\( \frac{1}{4}:\frac{1}{2}=\text{?} \)

FAQ

Everything you need to know about this question

Why convert to fractions when I can just divide decimals?

+

Converting to fractions gives you the exact answer! Direct decimal division often creates long, repeating decimals that are hard to work with. The fraction method keeps everything precise.

How do I know when to convert the final answer to a mixed number?

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Convert to a mixed number when the numerator is larger than the denominator. For example, 11338 \frac{113}{38} becomes 23738 2\frac{37}{38} because 113 > 38.

What if I can't remember how to divide fractions?

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Use the phrase "Keep, Change, Flip"! Keep the first fraction, change division to multiplication, and flip the second fraction upside down.

Can I simplify the fraction 37/38 any further?

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No! Since 37 is prime and doesn't divide evenly into 38, the fraction 3738 \frac{37}{38} is already in its simplest form.

How do I check if my mixed number answer is correct?

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  • Convert back to improper fraction: 23738=11338 2\frac{37}{38} = \frac{113}{38}
  • Cross-multiply with original problem
  • Or convert to decimal and verify: 11.3 ÷ 3.8 ≈ 2.97

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