3rd Grade Fractions Worksheets with Answer Key - Free Printable

Let's solve this step-by-step. The worksheet has two parts:

---

Part 1: What is the Fraction of the Shaded Area?

We need to determine what fraction of each shape is shaded.

---

#### 1) Rectangle divided into 5 equal parts, 3 shaded
- Total parts = 5
- Shaded parts = 3
- Fraction = 3/5

#### 2) Rectangle divided into 3 equal parts, 1 shaded
- Total parts = 3
- Shaded parts = 1
- Fraction = 1/3

#### 3) Rectangle divided into 5 equal parts, 4 shaded
- Total parts = 5
- Shaded parts = 4
- Fraction = 4/5

#### 4) Circle divided into 6 equal parts, 2 shaded
- Total parts = 6
- Shaded parts = 2
- Fraction = 2/6 = 1/3 (simplified)

#### 5) Circle divided into 8 equal parts, 2 shaded
- Total parts = 8
- Shaded parts = 2
- Fraction = 2/8 = 1/4

#### 6) Octagon (8 sides), divided into 8 equal parts, 1 shaded
- Total parts = 8
- Shaded parts = 1
- Fraction = 1/8

#### 7) Rectangle divided into 5 equal parts, 4 shaded
- Total parts = 5
- Shaded parts = 4
- Fraction = 4/5

#### 8) Octagon divided into 8 equal parts, 3 shaded
- Total parts = 8
- Shaded parts = 3
- Fraction = 3/8

#### 9) Rectangle divided into 7 equal parts, 6 shaded
- Total parts = 7
- Shaded parts = 6
- Fraction = 6/7

#### 10) Pentagon divided into 5 equal parts, 2 shaded
- Total parts = 5
- Shaded parts = 2
- Fraction = 2/5

---

✔ Part 1 Answers:

1) 3/5
2) 1/3
3) 4/5
4) 2/6 or 1/3
5) 2/8 or 1/4
6) 1/8
7) 4/5
8) 3/8
9) 6/7
10) 2/5

---

Part 2: Shade the Figure with the Indicated Fraction

Now we are given a fraction and must shade the correct number of parts in each figure.

---

#### 11) Circle divided into 4 parts, shade 1/4
- Total parts = 4
- Shade 1 part

#### 12) Octagon divided into 8 parts, shade 6/8
- Total parts = 8
- Shade 6 parts

#### 13) Rectangle divided into 6 parts, shade 1/6
- Total parts = 6
- Shade 1 part

#### 14) Circle divided into 4 parts, shade 3/4
- Total parts = 4
- Shade 3 parts

#### 15) Diamond (square rotated) divided into 4 parts, shade 2/4
- Total parts = 4
- Shade 2 parts

#### 16) Circle divided into 6 parts, shade 2/6
- Total parts = 6
- Shade 2 parts

#### 17) Pentagon divided into 5 parts, shade 2/5
- Total parts = 5
- Shade 2 parts

#### 18) Rectangle divided into 8 parts, shade 4/8
- Total parts = 8
- Shade 4 parts

#### 19) Circle divided into 8 parts, shade 3/8
- Total parts = 8
- Shade 3 parts

#### 20) Pentagon divided into 5 parts, shade 1/5
- Total parts = 5
- Shade 1 part

---

✔ Part 2 Instructions:

You would shade the following number of parts in each figure:

11) 1 out of 4
12) 6 out of 8
13) 1 out of 6
14) 3 out of 4
15) 2 out of 4
16) 2 out of 6
17) 2 out of 5
18) 4 out of 8
19) 3 out of 8
20) 1 out of 5

---

✔ Final Answer Summary:

#### Part 1 – Fractions of Shaded Areas:
1) 3/5
2) 1/3
3) 4/5
4) 1/3
5) 1/4
6) 1/8
7) 4/5
8) 3/8
9) 6/7
10) 2/5

#### Part 2 – Shading Instructions:
Shade:
11) 1/4 → 1 section
12) 6/8 → 6 sections
13) 1/6 → 1 section
14) 3/4 → 3 sections
15) 2/4 → 2 sections
16) 2/6 → 2 sections
17) 2/5 → 2 sections
18) 4/8 → 4 sections
19) 3/8 → 3 sections
20) 1/5 → 1 section

---

> 💡 Tip: When shading, make sure the shapes are evenly divided — each part should be equal in size.

Let me know if you'd like a visual version or printable answer key!