Solve the Fraction: (100+1)/25 - Step-by-Step Division

Improper Fractions with Mixed Number Conversion

100+125= \frac{100+1}{25}=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:03 Let's solve this expression together.
00:07 First, add the numbers in the top part of the fraction.
00:16 Now, change the fraction into a mixed number.
00:25 Well done! That's how we find the solution.

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

100+125= \frac{100+1}{25}=

2

Step-by-step solution

We are given the expression 100+125 \frac{100+1}{25} and we need to evaluate it step by step according to the order of operations.

Step 1: Evaluate the expression inside the fraction.
We first perform the addition within the numerator:
100+1=101 100 + 1 = 101

Step 2: Divide the result by the denominator.
Now we can simplify the fraction:
10125 \frac{101}{25}

Step 3: Convert the improper fraction to a mixed number.
To convert 10125 \frac{101}{25} to a mixed number, we divide 101 by 25.
25 goes into 101 four times with a remainder:

  • 25 times 4 equals 100
  • 101 minus 100 equals 1

Therefore, 10125 \frac{101}{25} is equivalent to 4125 4 \frac{1}{25} .

3

Final Answer

4125 4\frac{1}{25}

Key Points to Remember

Essential concepts to master this topic
  • Order of Operations: Always solve numerator operations before dividing by denominator
  • Division Method: 101÷25=4 101 ÷ 25 = 4 remainder 1 1 , so 4125 4\frac{1}{25}
  • Verification: Convert back: 4125=100+125=10125 4\frac{1}{25} = \frac{100+1}{25} = \frac{101}{25}

Common Mistakes

Avoid these frequent errors
  • Converting to wrong mixed number format
    Don't write 412 4\frac{1}{2} when dividing 101 by 25! This happens when students incorrectly think the remainder becomes a fraction with denominator different from the original. Always keep the original denominator: remainder 1 over 25 gives 4125 4\frac{1}{25} .

Practice Quiz

Test your knowledge with interactive questions

\( 100+5-100+5 \)

FAQ

Everything you need to know about this question

Why can't the answer be 412 4\frac{1}{2} ?

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Because 412=4.5 4\frac{1}{2} = 4.5 , but 10125=4.04 \frac{101}{25} = 4.04 . When converting improper fractions to mixed numbers, the remainder stays over the original denominator, which is 25.

How do I convert an improper fraction to a mixed number?

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Follow these steps: 1) Divide the numerator by denominator 2) The quotient becomes the whole number 3) The remainder becomes the new numerator 4) Keep the same denominator. So 10125 \frac{101}{25} becomes 4125 4\frac{1}{25} .

Can I leave the answer as just 4?

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No! The answer 4 ignores the remainder completely. 10125 \frac{101}{25} equals exactly 4125 4\frac{1}{25} , which is slightly more than 4. Always include the fractional part!

What if I forget the order of operations in the numerator?

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Always solve inside the parentheses first! If you divide before adding, you get 10025+1=4+1=5 \frac{100}{25} + 1 = 4 + 1 = 5 , which is wrong. The correct way: 100+1=101 100 + 1 = 101 , then 10125 \frac{101}{25} .

How can I check if 4125 4\frac{1}{25} is correct?

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Convert the mixed number back to an improper fraction: 4125=4×25+125=100+125=10125 4\frac{1}{25} = \frac{4 \times 25 + 1}{25} = \frac{100 + 1}{25} = \frac{101}{25} . This matches our original expression!

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