Solve: Finding 1/4 of (44 + 444) Using Fraction Properties

Distributive Property with Multi-Step Calculations

Solve the following problem:

14(44+444)= \frac{1}{4}(44+444)=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve
00:03 Always solve parentheses first
00:07 Use long addition
00:19 Multiply by numerator
00:23 Break down the numerator to 400 plus 88
00:28 Divide into two fractions
00:35 Calculate each division separately and then sum
00:43 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Solve the following problem:

14(44+444)= \frac{1}{4}(44+444)=

2

Step-by-step solution

Perform the addition operation inside of the parentheses by following the order of operations.

14(488)= \frac{1}{4}(488)=

Apply the distributive property of multiplication and proceed to break down the three-digit number that we obtained into a sum of three numbers: hundreds, tens, and ones. This allows us to work with smaller numbers and simplify the operation.

Reminder - The distributive property of multiplication allows us to break down the larger term in a multiplication problem into a sum or difference of smaller numbers, which makes multiplication easier and gives us the ability to solve the problem without a calculator

14(400+80+8)= \frac{1}{4}(400+80+8)=
We will apply the distributive property formula a(b+c+d)=ab+ac+ad a(b+c+d) = ab+ac+ad

14×400+14×80+14×8= \frac{1}{4}×400 + \frac{1}{4}× 80 + \frac{1}{4}×8=

Follow the order of operations and proceed to perform the operations

4004+804+84= \frac{400}{4}+\frac{80}{4}+\frac{8}{4}=

100+20+2=122 100+20+2=122

Therefore, the answer is option C - 122.

Below are the various steps of the solution:

14(44+444)=14(488)=14(400+80+8)=14×400+14×80+14×8=4004+804+84=100+20+2=122 \frac{1}{4}(44+444)= \frac{1}{4}(488)= \frac{1}{4}(400+80+8)= \frac{1}{4}×400 + \frac{1}{4}× 80 + \frac{1}{4}×8= \frac{400}{4}+\frac{80}{4}+\frac{8}{4}= 100+20+2=122

3

Final Answer

122 122

Key Points to Remember

Essential concepts to master this topic
  • Order: Always perform operations inside parentheses first
  • Technique: Break down 488 = 400 + 80 + 8 for easier distribution
  • Check: Verify 14×488=122 \frac{1}{4} \times 488 = 122 using calculator ✓

Common Mistakes

Avoid these frequent errors
  • Distributing before adding inside parentheses
    Don't distribute 14 \frac{1}{4} to 44 and 444 separately = 11+111=122 11 + 111 = 122 (lucky coincidence)! This skips order of operations and usually gives wrong answers. Always add inside parentheses first, then multiply.

Practice Quiz

Test your knowledge with interactive questions

\( 140-70= \)

FAQ

Everything you need to know about this question

Why can't I just multiply 1/4 by each number in the parentheses?

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You could use the distributive property that way: 14×44+14×444 \frac{1}{4} \times 44 + \frac{1}{4} \times 444 . But it's easier to add first (44 + 444 = 488) then multiply by 1/4!

How do I multiply 1/4 by 488 without a calculator?

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Break 488 into place values: 400 + 80 + 8. Then: 4004+804+84=100+20+2=122 \frac{400}{4} + \frac{80}{4} + \frac{8}{4} = 100 + 20 + 2 = 122 .

What if I get confused about order of operations?

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Remember PEMDAS: Parentheses first! So 14(44+444) \frac{1}{4}(44+444) means do the addition (44+444) before multiplying by 14 \frac{1}{4} .

Is there a faster way to solve this?

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Yes! Notice that 44 = 110×440 \frac{1}{10} \times 440 and 444 = 440 + 4. But the method shown (add then multiply) is most reliable for avoiding errors.

Why do we break 488 into hundreds, tens, and ones?

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Breaking numbers by place value makes division easier. 4004=100 \frac{400}{4} = 100 , 804=20 \frac{80}{4} = 20 , 84=2 \frac{8}{4} = 2 are all simple mental math!

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