Multiply Mixed Numbers: 3 4/6 × 2 2/4 Step-by-Step Solution

Mixed Number Multiplication with Simplification Steps

346×224= 3\frac{4}{6}\times2\frac{2}{4}=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve
00:03 Reduce what's possible
00:31 Convert mixed fractions to fractions
00:43 Calculate the numerators
00:53 Make sure to multiply numerator by numerator and denominator by denominator
00:58 Calculate the multiplications
01:03 Now convert to mixed fraction
01:08 Break down 55 to 54 plus 1
01:14 Break down the fraction into whole number and remainder
01:19 Convert whole fraction to whole number, and combine with mixed number
01:23 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

346×224= 3\frac{4}{6}\times2\frac{2}{4}=

2

Step-by-step solution

To solve the problem of multiplying these mixed fractions, we will proceed through the following steps:

  • Step 1: Convert each mixed number into an improper fraction.
    3463\frac{4}{6} must first be simplified to 3233\frac{2}{3}.
    To convert 3233\frac{2}{3} to an improper fraction: 3×3+2=113 \times 3 + 2 = 11, so we have 113\frac{11}{3}.
    For 2242\frac{2}{4}, simplify 24\frac{2}{4} to 12\frac{1}{2} making the fraction 2122\frac{1}{2}.
    Convert 2122\frac{1}{2} to an improper fraction: 2×2+1=52 \times 2 + 1 = 5, so we have 52\frac{5}{2}.
  • Step 2: Multiply the two improper fractions:
    The calculation is 113×52=11×53×2=556\frac{11}{3} \times \frac{5}{2} = \frac{11 \times 5}{3 \times 2} = \frac{55}{6}.
  • Step 3: Simplify 556\frac{55}{6} by converting it back to a mixed number.
    Divide 55 by 6 which gives 9 as the quotient and 1 as the remainder. Therefore, 556=916\frac{55}{6} = 9\frac{1}{6}.

Therefore, the result of the multiplication is 9169\frac{1}{6}.

3

Final Answer

916 9\frac{1}{6}

Key Points to Remember

Essential concepts to master this topic
  • Conversion Rule: Always simplify fractions before converting to improper fractions
  • Technique: Convert 346 3\frac{4}{6} to 323 3\frac{2}{3} then 113 \frac{11}{3}
  • Check: Convert final answer back: 556=916 \frac{55}{6} = 9\frac{1}{6} using division ✓

Common Mistakes

Avoid these frequent errors
  • Forgetting to simplify fractions before converting
    Don't convert 346 3\frac{4}{6} directly to 226 \frac{22}{6} without simplifying first = wrong improper fraction! This makes calculations unnecessarily complicated and increases chance of errors. Always simplify 46 \frac{4}{6} to 23 \frac{2}{3} first, then convert.

Practice Quiz

Test your knowledge with interactive questions

\( 5:\frac{2}{5}= \)

FAQ

Everything you need to know about this question

Why do I need to simplify the fractions first?

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Simplifying fractions like 46 \frac{4}{6} to 23 \frac{2}{3} makes the numbers smaller and easier to work with. It also reduces the chance of making calculation errors when converting to improper fractions.

Can I multiply the mixed numbers directly without converting?

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Not recommended! While there's a formula for multiplying mixed numbers directly, converting to improper fractions first is much clearer and less error-prone for most students.

How do I remember the formula for converting mixed numbers?

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Use this simple pattern: "Multiply, Add, Keep"

  • Multiply the whole number by the denominator
  • Add the numerator
  • Keep the same denominator

For 323 3\frac{2}{3} : (3×3) + 2 = 11, so 113 \frac{11}{3}

What if my final answer is an improper fraction?

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Always convert improper fractions back to mixed numbers for the final answer! Divide the numerator by the denominator: the quotient becomes the whole number, and the remainder becomes the new numerator.

How do I check if my answer is correct?

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Try these verification methods:

  • Estimate: 323×212 3\frac{2}{3} \times 2\frac{1}{2} is about 4 × 2.5 = 10, close to 916 9\frac{1}{6}
  • Convert back: Check that 556=916 \frac{55}{6} = 9\frac{1}{6} by doing 55 ÷ 6 = 9 R1

Why is the answer not a whole number?

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When multiplying fractions, the result doesn't have to be a whole number! Since we're multiplying parts of wholes, we often get fractional results. That's completely normal and correct.

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