Solve the Ratio Equation: 4 to 6/8 Comparison

Ratio Division with Fraction Simplification

4:68= 4:\frac{6}{8}=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:04 Let's solve a math problem together.
00:08 Remember, when any number is divided by one, it equals the number itself.
00:18 We can change division into multiplication by using the reciprocal. Let's do that now.
00:28 Be sure to multiply the numerators together, and then multiply the denominators together.
00:35 Go ahead and calculate these multiplications.
00:40 Next, let's convert our answer to a mixed number.
00:45 We can do this by breaking down 32 into 30 plus 2.
00:49 Now, let's break the fraction into a whole number and a remainder.
00:54 Then convert the proper fraction to a whole number. Add this to get a mixed number.
01:00 Finally, reduce the fraction if you can. And there you have it!
01:11 That's how you solve the question. Well done!

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

4:68= 4:\frac{6}{8}=

2

Step-by-step solution

To solve this problem, we'll proceed as follows:

  • Step 1: Simplify the fraction 68\frac{6}{8}.
  • Step 2: Use the formula for dividing by a fraction by multiplying by its reciprocal.
  • Step 3: Simplify the resulting fraction or convert it to a mixed number.

Let's work through these steps:

Step 1: Simplify 68\frac{6}{8}.
68\frac{6}{8} simplifies to 34\frac{3}{4} by dividing the numerator and the denominator by 2 (the greatest common divisor).

Step 2: Find the reciprocal of 34\frac{3}{4} and multiply it by 4.
The reciprocal of 34\frac{3}{4} is 43\frac{4}{3}.
So, 4÷34=4×43=1634 \div \frac{3}{4} = 4 \times \frac{4}{3} = \frac{16}{3}.

Step 3: Simplify 163\frac{16}{3} to a mixed number.
163\frac{16}{3} can be expressed as 5135\frac{1}{3} since 16 divided by 3 is 5 with a remainder of 1.

Therefore, the solution to the problem is 5135\frac{1}{3}.

3

Final Answer

513 5\frac{1}{3}

Key Points to Remember

Essential concepts to master this topic
  • Rule: Ratio 4:6/8 means 4 divided by 6/8
  • Technique: Multiply 4 × 4/3 (reciprocal of simplified 3/4)
  • Check: 5⅓ × 3/4 should equal 4 (16/3 × 3/4 = 4) ✓

Common Mistakes

Avoid these frequent errors
  • Not simplifying the fraction first
    Don't work with 6/8 directly = more complex calculations and errors! This makes the arithmetic unnecessarily difficult and increases chance of mistakes. Always simplify fractions like 6/8 to 3/4 before finding the reciprocal.

Practice Quiz

Test your knowledge with interactive questions

\( \frac{1}{2}:3= \)\( \)\( \)\( \)

FAQ

Everything you need to know about this question

What does the colon mean in 4:6/8?

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The colon means "divided by" - so 4:68 4:\frac{6}{8} is the same as 4÷68 4 \div \frac{6}{8} . Think of it as "4 compared to 6/8" which asks how many times bigger 4 is.

Why do I need to find the reciprocal?

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Dividing by a fraction is the same as multiplying by its reciprocal. So 4÷34 4 \div \frac{3}{4} becomes 4×43 4 \times \frac{4}{3} , which is much easier to calculate!

How do I convert 16/3 to a mixed number?

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Divide the numerator by the denominator: 16 ÷ 3 = 5 remainder 1. So 163=513 \frac{16}{3} = 5\frac{1}{3} (5 wholes and 1/3 left over).

Should I always simplify fractions first?

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Yes, absolutely! Simplifying 68 \frac{6}{8} to 34 \frac{3}{4} makes the reciprocal easier to find and reduces calculation errors. Always look for common factors!

What if I get a different answer choice?

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Double-check your work! Make sure you:

  • Simplified 6/8 to 3/4
  • Found the correct reciprocal (4/3)
  • Multiplied 4 × 4/3 = 16/3
  • Converted 16/3 properly to 513 5\frac{1}{3}

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