Let's solve each of the three word problems step by step, based on the information provided in the image.
---
Given Information:
- Total number of students in the school:
462
- Two Grade 4 classes:
-
Ms. Ashley’s class: 14 girls and 10 boys
- Total = 14 + 10 =
24 students
-
Mr. Ben’s class: 14 girls and 10 boys
- Total = 14 + 10 =
24 students
- So, total Grade 4 students = 24 (Ms. Ashley) + 24 (Mr. Ben) =
48 students
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Question 1: What fraction of the students in the school are in grade 4?
We need to find what fraction of the
total school population is in Grade 4.
- Grade 4 students = 48
- Total school students = 462
So, the fraction is:
$$
\frac{48}{462}
$$
Now simplify this fraction.
First, find the greatest common divisor (GCD) of 48 and 462.
- Factors of 48: 2 × 2 × 2 × 2 × 3
- Factors of 462: 2 × 3 × 7 × 11
- Common factors: 2 × 3 = 6
Divide numerator and denominator by 6:
$$
\frac{48 ÷ 6}{462 ÷ 6} = \frac{8}{77}
$$
✔ Answer to Question 1: $ \frac{8}{77} $
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Question 2: What fraction of the grade 4 students are boys?
Total Grade 4 students = 48
Number of boys in Grade 4:
- Ms. Ashley’s class: 10 boys
- Mr. Ben’s class: 10 boys
- Total boys = 10 + 10 =
20
So, fraction of Grade 4 students who are boys:
$$
\frac{20}{48}
$$
Simplify:
Divide numerator and denominator by 4:
$$
\frac{20 ÷ 4}{48 ÷ 4} = \frac{5}{12}
$$
✔ Answer to Question 2: $ \frac{5}{12} $
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Question 3: What fraction of the grade 4 students are in Ms. Ashley’s class?
Ms. Ashley’s class has 24 students
Total Grade 4 students = 48
So,
$$
\frac{24}{48} = \frac{1}{2}
$$
✔ Answer to Question 3: $ \frac{1}{2} $
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✔ Final Answers:
1. $ \frac{8}{77} $ of the students in the school are in grade 4.
2. $ \frac{5}{12} $ of the grade 4 students are boys.
3. $ \frac{1}{2} $ of the grade 4 students are in Ms. Ashley’s class.
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Parent Tip: Review the logic above to help your child master the concept of fraction word problems 4th grade worksheet.