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Practice multiplying fractions with this printable worksheet from Brighterly.

Worksheet with multiplication problems involving fractions, titled "Find the product," from Brighterly.

Worksheet with multiplication problems involving fractions, titled "Find the product," from Brighterly.

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Show Answer Key & Explanations Step-by-step solution for: 4th Grade Multiplication Worksheets - Free Printable ...
Let’s solve each multiplication problem step by step. Remember: when multiplying two fractions, you multiply the numerators (top numbers) together and the denominators (bottom numbers) together. Then simplify if needed — but in this worksheet, all answers are already in simplest form or don’t need simplifying.

We’ll go one by one:

1. 1/5 × 3/5 = (1×3)/(5×5) = 3/25
2. 7/8 × 2/8 = (7×2)/(8×8) = 14/64 → simplify? Wait, 14 and 64 both divisible by 2 → 7/32? But let’s check original: 7/8 × 2/8 = 14/64 = 7/32. However, looking at pattern — maybe they want unsimplified? Let me double-check instructions. The worksheet says “Find the product” — usually means multiply and simplify if possible. But let’s see other problems. Actually, for consistency, we’ll multiply straight across and reduce only if obvious. But 14/64 reduces to 7/32. Hmm. Wait — perhaps I should just compute as is and leave as improper fraction unless told otherwise. But in elementary math, they often expect simplified form. Let me recalculate carefully.

Actually, let’s do them all with care:

1. 1/5 × 3/5 = 3/25
2. 7/8 × 2/8 = 14/64 = 7/32 (divided numerator and denominator by 2)
But wait — maybe the worksheet expects unreduced? Let me look at problem 3: 3/5 × 4/5 = 12/25 — that’s already reduced. Problem 4: 6/8 × 3/8 = 18/64 = 9/32. So yes, we should reduce.

But hold on — let’s verify with actual calculation without reducing first, then reduce.

I think it’s safer to multiply and then reduce each answer to lowest terms.

Let me make a list:

1. 1/5 × 3/5 = 3/25 → already reduced
2. 7/8 × 2/8 = 14/64 → divide by 2 → 7/32
3. 3/5 × 4/5 = 12/25 → reduced
4. 6/8 × 3/8 = 18/64 → divide by 2 → 9/32
5. 1/3 × 2/3 = 2/9 → reduced
6. 7/8 × 4/8 = 28/64 → divide by 4 → 7/16
7. 3/6 × 4/6 = 12/36 → divide by 12 → 1/3? Or divide by 6 → 2/6 = 1/3. Yes, 12÷12=1, 36÷12=3 → 1/3
Wait, 3/6 is 1/2, 4/6 is 2/3, so 1/2 × 2/3 = 2/6 = 1/3 — same thing.
8. 2/6 × 2/6 = 4/36 = 1/9
9. 2/5 × 3/5 = 6/25
10. 1/5 × 4/5 = 4/25
11. 4/8 × 6/8 = 24/64 = 3/8 (divide by 8)
12. 4/6 × 4/6 = 16/36 = 4/9 (divide by 4)
13. 2/3 × 2/3 = 4/9
14. 1/6 × 5/6 = 5/36
15. 2/8 × 4/6 = 8/48 = 1/6 (divide by 8)
Wait: 2/8 is 1/4, 4/6 is 2/3, so 1/4 × 2/3 = 2/12 = 1/6 — correct.
16. 2/4 × 1/4 = 2/16 = 1/8
17. 1/3 × 1/3 = 1/9
18. 6/8 × 7/8 = 42/64 = 21/32 (divide by 2)
19. 4/5 × 2/5 = 8/25
20. 1/5 × 5/5 = 5/25 = 1/5
21. 1/6 × 4/6 = 4/36 = 1/9
22. 3/4 × 3/4 = 9/16
23. 5/8 × 1/8 = 5/64
24. 4/5 × 1/5 = 4/25
25. 5/8 × 5/8 = 25/64
26. 2/8 × 5/8 = 10/64 = 5/32
27. 3/6 × 3/6 = 9/36 = 1/4
28. 2/4 × 2/4 = 4/16 = 1/4
29. 3/6 × 5/6 = 15/36 = 5/12
30. 7/8 × 3/8 = 21/64

Now let me write them in order with final simplified answers:

1. 3/25
2. 7/32
3. 12/25
4. 9/32
5. 2/9
6. 7/16
7. 1/3
8. 1/9
9. 6/25
10. 4/25
11. 3/8
12. 4/9
13. 4/9
14. 5/36
15. 1/6
16. 1/8
17. 1/9
18. 21/32
19. 8/25
20. 1/5
21. 1/9
22. 9/16
23. 5/64
24. 4/25
25. 25/64
26. 5/32
27. 1/4
28. 1/4
29. 5/12
30. 21/64

I think that’s all. Let me double-check a few tricky ones:

Problem 7: 3/6 × 4/6 = (3×4)/(6×6) = 12/36 = 1/3 ✔️
Problem 15: 2/8 × 4/6 = (2×4)/(8×6) = 8/48 = 1/6 ✔️
Problem 20: 1/5 × 5/5 = 5/25 = 1/5 ✔️
Problem 27: 3/6 × 3/6 = 9/36 = 1/4 ✔️
Problem 29: 3/6 × 5/6 = 15/36 = 5/12 ✔️

All seem correct.

Final Answer:
1. 3/25
2. 7/32
3. 12/25
4. 9/32
5. 2/9
6. 7/16
7. 1/3
8. 1/9
9. 6/25
10. 4/25
11. 3/8
12. 4/9
13. 4/9
14. 5/36
15. 1/6
16. 1/8
17. 1/9
18. 21/32
19. 8/25
20. 1/5
21. 1/9
22. 9/16
23. 5/64
24. 4/25
25. 25/64
26. 5/32
27. 1/4
28. 1/4
29. 5/12
30. 21/64
Parent Tip: Review the logic above to help your child master the concept of math multiplication worksheet 4th grade.
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