Let's solve each problem step by step using
fraction bars (also known as bar models) and write an equation for each. The total race is
120 miles long.
---
Problem 1:
> At the end of Day 1, Nora has completed $ \frac{1}{2} $ of the race.
> How many miles has she gone?
####
Step 1: Understand the problem
We need to find $ \frac{1}{2} $ of 120 miles.
####
Step 2: Use a fraction bar model
Imagine a bar representing the entire race:
```
[--------------------------] ← 120 miles
```
Divide it into 2 equal parts:
```
[--------][--------] ← Each part = 60 miles
```
So, $ \frac{1}{2} $ of the race = 60 miles.
####
Equation:
$$
\frac{1}{2} \times 120 = 60
$$
✔ Answer: Nora has gone
60 miles.
---
Problem 2:
> At the end of Day 1, Stuart has completed $ \frac{1}{4} $ of the race.
> How many miles has he gone?
####
Step 1: Use a fraction bar model
Bar for the full race:
```
[--------------------------] ← 120 miles
```
Divide into 4 equal parts:
```
[---][---][---][---] ← Each part = 30 miles
```
So, $ \frac{1}{4} $ of the race = 30 miles.
####
Equation:
$$
\frac{1}{4} \times 120 = 30
$$
✔ Answer: Stuart has gone
30 miles.
---
Problem 3:
> At the end of Day 2, Nora has completed $ \frac{5}{6} $ of the race.
> How many miles has she gone?
####
Step 1: Use a fraction bar model
Bar for the full race:
```
[--------------------------] ← 120 miles
```
Divide into 6 equal parts:
```
[----][----][----][----][----][----] ← Each part = 20 miles
```
Now take 5 of those parts:
```
[----][----][----][----][----] ← 5 × 20 = 100 miles
```
So, $ \frac{5}{6} $ of the race = 100 miles.
####
Equation:
$$
\frac{5}{6} \times 120 = 100
$$
✔ Answer: Nora has gone
100 miles.
---
✔ Final Answers:
1.
60 miles
Equation: $ \frac{1}{2} \times 120 = 60 $
2.
30 miles
Equation: $ \frac{1}{4} \times 120 = 30 $
3.
100 miles
Equation: $ \frac{5}{6} \times 120 = 100 $
---
You can draw these fraction bars in your notebook as shown above to visually represent each solution.
Parent Tip: Review the logic above to help your child master the concept of fraction bar worksheet.