WorksheetsFinding the Least Common Multiple
Total questions: 22
Answer KeyFinding the Least Common Multiple
Total questions: 22
6
28
12
22
30
60
35
45
50
42
60

22 questions
6th - 6th Grade
Mathematics
This Grade 6 mathematics worksheet helps students find the least common multiple (LCM) of pairs of whole numbers. It includes 18 multiple-choice questions, 2 math-response questions, and 2 fill-in-the-blank questions covering LCM identification, the meaning of the abbreviation, and pairs such as 4 and 10, 8 and 18, and 12 and 10. Students also apply LCM reasoning to identify a common denominator for two fractions, connecting whole-number multiples to fraction work. The varied response formats give learners practice selecting an answer, calculating an LCM independently, and recording a result. This free printable worksheet with an answer key is designed for Grade 6 math practice, independent work, review, or a quick check of students’ understanding of LCM.
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Answer Key6
28
12
22
30
60
35
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42
60
This Grade 6 math worksheet focuses on finding the least common multiple of two whole numbers through 18 multiple-choice questions, 2 math-response questions, and 2 fill-in-the-blank items. Students identify LCMs for number pairs, recognize what LCM means, and apply the skill to choose a common denominator for 3/10 and 1/5. The varied formats require students to recognize, calculate, and record LCMs rather than rely on one response type.
Introduce LCM as the smallest number that is a multiple of both numbers, then model one pair before students work through the worksheet’s multiple-choice items. Ask students to explain why an option is the least common multiple, especially when one number is already a multiple of the other, as with 6 and 12. Finish by discussing how the LCM of 10 and 5 provides a common denominator for the fraction question.
Students may choose a common multiple that is not the least one, such as selecting a larger multiple when a smaller shared multiple exists. They may also select one of the original numbers without checking whether it is a multiple of both numbers, or confuse the meaning of LCM with another phrase. In the fraction item, watch for students choosing 5 instead of 10 as a common denominator for 3/10 and 1/5.
Wayground provides this worksheet as a printable PDF and as a digital quiz, and it includes a complete answer key for all 22 questions. Printable submissions can be graded by scanning student work with the Wayground for Teachers app. The printable format also supports classrooms that are reducing screen time while students practise LCM calculations.
Use the worksheet’s Advanced Settings to adjust font spacing and font size so the LCM number-pair questions and response areas are easier to read. You can also enable a dyslexia-friendly font or translate the worksheet into another language when appropriate. These options modify the worksheet file while preserving its multiple-choice, math-response, and fill-in-the-blank format.
Wayground offers a broad collection of free printable worksheets and practice problems across subjects, with downloadable PDFs and answer keys to support essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.