Solve Fraction Multiplication: 1/6 × 2/3 Step-by-Step

Fraction Multiplication with Simplification Requirements

16×23= \frac{1}{6}\times\frac{2}{3}=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve
00:03 Make sure to multiply numerator by numerator and denominator by denominator
00:06 Calculate the multiplications
00:10 Reduce the fraction as much as possible
00:13 Make sure to divide both numerator and denominator
00:19 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

16×23= \frac{1}{6}\times\frac{2}{3}=

2

Step-by-step solution

To solve the problem, we will calculate the product of the fractions 16 \frac{1}{6} and 23 \frac{2}{3} using the standard method for multiplying fractions.

Step 1: Multiply the numerators.
The numerators are 1 and 2. Thus, the product of the numerators is 1×2=2 1 \times 2 = 2 .

Step 2: Multiply the denominators.
The denominators are 6 and 3. Thus, the product of the denominators is 6×3=18 6 \times 3 = 18 .

Step 3: Form the resulting fraction from the products obtained in the previous steps.
This gives us the fraction 218 \frac{2}{18} .

Step 4: Simplify the fraction.
To simplify 218 \frac{2}{18} , find the greatest common divisor (GCD) of 2 and 18, which is 2. Divide both the numerator and the denominator by their GCD:
2÷218÷2=19 \frac{2 \div 2}{18 \div 2} = \frac{1}{9}

Therefore, the simplified result of 16×23 \frac{1}{6} \times \frac{2}{3} is 19 \frac{1}{9} .

We compare this result with the multiple-choice options and confirm that the correct answer is:

19 \frac{1}{9}

3

Final Answer

19 \frac{1}{9}

Key Points to Remember

Essential concepts to master this topic
  • Rule: Multiply numerators together, then denominators together
  • Technique: Calculate 1×2=2 1 \times 2 = 2 and 6×3=18 6 \times 3 = 18 to get 218 \frac{2}{18}
  • Check: Always simplify by dividing by GCD: 218=19 \frac{2}{18} = \frac{1}{9}

Common Mistakes

Avoid these frequent errors
  • Forgetting to simplify the final fraction
    Don't leave 218 \frac{2}{18} as your final answer = wrong result! The fraction must be reduced to lowest terms. Always find the GCD and divide both numerator and denominator by it to get 19 \frac{1}{9} .

Practice Quiz

Test your knowledge with interactive questions

\( \frac{1}{3}+\frac{1}{4}= \)

FAQ

Everything you need to know about this question

Why can't I just multiply across without simplifying?

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You must simplify to get the answer in lowest terms! 218 \frac{2}{18} and 19 \frac{1}{9} are equal, but only 19 \frac{1}{9} is simplified.

How do I find the GCD of 2 and 18?

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List the factors: 2 has factors 1, 2 and 18 has factors 1, 2, 3, 6, 9, 18. The largest common factor is 2, so GCD = 2.

Can I simplify before multiplying instead?

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Yes! You can cancel common factors first: 16×23 \frac{1}{6} \times \frac{2}{3} becomes 13×13=19 \frac{1}{3} \times \frac{1}{3} = \frac{1}{9} after canceling the 2 and 6.

What if I get confused about which numbers to multiply?

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Remember: top × top, bottom × bottom. Numerators (1 and 2) multiply together, denominators (6 and 3) multiply together.

How do I know when my fraction is fully simplified?

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A fraction is simplified when the GCD of numerator and denominator equals 1. For 19 \frac{1}{9} , GCD(1,9) = 1, so it's fully simplified!

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