Solve: (2/3 × 2/3) + 4/9 Fraction Expression

Fraction Multiplication with Like Denominators

23×23+49= \frac{2}{3}\times\frac{2}{3}+\frac{4}{9}=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:05 Let's solve this problem!
00:08 First, multiply the numerators together. Then, multiply the denominators together.
00:14 Next, calculate these multiplications carefully.
00:19 Now, add the results over a common denominator.
00:23 Let's work on the numerator next.
00:27 Great job! That's your final solution!

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

23×23+49= \frac{2}{3}\times\frac{2}{3}+\frac{4}{9}=

2

Step-by-step solution

To solve the given problem, we will follow these steps:

  • Step 1: Perform the multiplication of the fractions.
  • Step 2: Simplify the result, if applicable.
  • Step 3: Add the simplified fractional result to the given fraction, ensuring the denominators align properly.
  • Step 4: Simplify the final result, if necessary.

Let's go through each step:

Step 1: Multiply the fractions 23×23=2×23×3=49 \frac{2}{3} \times \frac{2}{3} = \frac{2 \times 2}{3 \times 3} = \frac{4}{9} .

Step 2: The result from step 1 is 49\frac{4}{9}, which cannot be further simplified.

Step 3: Add the result from Step 2 to 49\frac{4}{9} given in the problem:
We have two fractions 49\frac{4}{9} and 49\frac{4}{9}, and since they already have a common denominator, we add them directly:
49+49=4+49=89\frac{4}{9} + \frac{4}{9} = \frac{4 + 4}{9} = \frac{8}{9}.

Step 4: The fraction 89\frac{8}{9} is already in its simplest form.

Therefore, the solution to the problem is 89 \frac{8}{9} .

3

Final Answer

89 \frac{8}{9}

Key Points to Remember

Essential concepts to master this topic
  • Multiplication Rule: Multiply numerators together, multiply denominators together
  • Addition Technique: Same denominators mean add numerators: 49+49=89 \frac{4}{9} + \frac{4}{9} = \frac{8}{9}
  • Verification: Check by confirming 23×23=49 \frac{2}{3} \times \frac{2}{3} = \frac{4}{9} then adding ✓

Common Mistakes

Avoid these frequent errors
  • Adding denominators when adding fractions
    Don't add denominators: 49+49818 \frac{4}{9} + \frac{4}{9} ≠ \frac{8}{18} ! This creates a wrong fraction that doesn't represent the correct sum. Always keep the same denominator and only add the numerators when denominators are alike.

Practice Quiz

Test your knowledge with interactive questions

Solve the following:

\( \frac{5}{9}:\frac{7}{18}= \)

FAQ

Everything you need to know about this question

Why don't I add the denominators when adding fractions?

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The denominator tells you what size pieces you're working with. If you have 49+49 \frac{4}{9} + \frac{4}{9} , you have 4 ninths plus 4 more ninths = 8 ninths total. The piece size (ninths) stays the same!

How do I multiply fractions step by step?

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It's easy! Multiply straight across: numerator × numerator on top, denominator × denominator on bottom. So 23×23=2×23×3=49 \frac{2}{3} \times \frac{2}{3} = \frac{2×2}{3×3} = \frac{4}{9}

What if I get confused about the order of operations?

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Remember PEMDAS! Multiplication comes before addition, so do 23×23 \frac{2}{3} \times \frac{2}{3} first to get 49 \frac{4}{9} , then add the 49 \frac{4}{9} .

How can I check if my answer is simplified?

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Look at your final fraction and see if the numerator and denominator share any common factors. Since 8 and 9 don't share any factors other than 1, 89 \frac{8}{9} is fully simplified!

What does it mean when fractions have the same denominator?

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Same denominators make addition super easy! You just add the numerators and keep the denominator. Think of it like having the same type of pieces - you're just counting how many total pieces you have.

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