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BitWithBite
Mathematics Worksheet

🔀 Least Common Multiple

Chapter: Pre-Algebra · Level ★☆☆ · Time: 30 min
SCORE___ / 20
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After this worksheet you can
Find the LCM of two numbers.Use the LCM to add fractions.Distinguish the LCM from the GCF.List common multiples of two numbers.

🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4

1LCM of 5 and 8 = ?
2LCM of 6 and 9 = ?
3LCM of 12 and 16 = ?
4The LCM is used to add fractions by finding a common:

🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11

5The LCM is the number both divide into.
6LCM of 5 and 8 = .
7Find the LCM of 5 and 8.
8Find the LCM of 6 and 9.
9Find the LCM of 12 and 16.

🚀 Section C · Challenge ● CHALLENGE 5

10Add 1/4 + 1/6 by first finding the LCM.
💭 Reflection — the most useful thing I learned:
A ___/4   B ___/11   C ___/5   Total ___/20 Teacher's Signature Parent's Signature
✂ answer key — fold or cut before handing out

1-B   2-C   3-B   4-B  |  5 smallest   6 40   7 = 40   8 = 18   9 = 48  |  10 = 5/12

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