Mr. Strand washed 
1
4
 of his laundry. His son washed 
2
7
 of it. Who washed most of the laundry? How much of the laundry still needs to be washed?
Solve this on paper. Then check your work on Zearn.
Who washed most of the laundry?

2
7
 is greater than 
1
4

so 
his son
 washed most of the laundry.
You got it!
Solve this on paper. Then check your work on Zearn.
How much of the laundry still needs to be washed?
 of the laundry still needs to be washed.

Let's break down the problem step by step:

### 1. Compare the fractions:
- Mr. Strand washed \( \frac{1}{4} \) of the laundry.
- His son washed \( \frac{2}{7} \) of the laundry.

To determine who washed more, we need to compare the fractions \( \frac{1}{4} \) and \( \frac{2}{7} \). One way to compare fractions is to find a common denominator. The least common denominator (LCD) of 4 and 7 is 28.

So let's convert both fractions:
- \( \frac{1}{4} = \frac{7}{28} \)
- \( \frac{2}{7} = \frac{8}{28} \)

Since \( \frac{8}{28} > \frac{7}{28} \), **his son washed more of the laundry**.

### 2. How much laundry still needs to be washed?
Now, let's add the fractions of the laundry that both washed to find out how much has been washed so far:
- Mr. Strand washed \( \frac{1}{4} \)
- His son washed \( \frac{2}{7} \)

We already know the least common denominator is 28, so:
- \( \frac{1}{4} = \frac{7}{28} \)
- \( \frac{2}{7} = \frac{8}{28} \)

Now, add the two fractions:
\[
\frac{7}{28} + \frac{8}{28} = \frac{15}{28}
\]

This means \( \frac{15}{28} \) of the laundry has been washed.

To find out how much is left to be washed, subtract this from 1 (which represents the whole laundry):
\[
1 - \frac{15}{28} = \frac{28}{28} - \frac{15}{28} = \frac{13}{28}
\]

Thus, **\( \frac{13}{28} \) of the laundry still needs to be washed**.

---

Do you have any questions or would you like further details?

### Related questions:
1. How do you find the least common denominator between two fractions?
2. How do you subtract fractions with different denominators?
3. What is the process to convert fractions to have the same denominator?
4. How can you determine which fraction is larger without calculating a common denominator?
5. What would happen if both Mr. Strand and his son washed \( \frac{1}{2} \) of the laundry?

### Tip: 
To compare fractions quickly, you can cross-multiply to see which fraction is larger without needing to find the common denominator.

Mr. Strand washed 1/4 of his laundry. His son washed 2/7 of it. Who washed most of the laundry? How much of the laundry still needs to be washed?

This page explains how to solve a fraction comparison problem, where Mr. Strand and his son washed different portions of the laundry. Compare 1/4 and 2/7, find out who washed more, and calculate how much laundry still needs to be washed. Ideal for students in Grades 5-6.

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