15 questions
5th - 5th Grade
Mathematics
Least Common Multiple is a Grade 5 mathematics worksheet that helps students find the smallest number shared by the multiples of two given numbers. The 15 questions use familiar number pairs such as 4 and 8, 3 and 4, 6 and 8, and 4 and 12, helping students recognize when one number is already a multiple of the other and when they must identify a new common multiple. The worksheet includes 12 multiple-choice questions and 3 fill-in-the-blank questions, giving students practice selecting and recording least common multiples independently. Teachers can use it for guided practice, independent work, review, or a quick check of understanding after instruction on multiples. This free printable worksheet includes a complete answer key for efficient checking and feedback.
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This Grade 5 mathematics worksheet asks students to find the least common multiple of two numbers using 12 multiple-choice questions and 3 fill-in-the-blank questions. The number pairs include cases where one number is already a multiple of the other, as well as pairs that require students to identify the first shared multiple, building accuracy with LCM reasoning.
First, model how to list the multiples of each number and identify the smallest value that appears in both lists. Use pairs from the worksheet, such as 3 and 4 or 6 and 8, to compare the lists and explain why a larger common multiple is not the least common multiple. Then have students complete the multiple-choice items before checking whether they can produce answers independently in the fill-in-the-blank items.
Students may choose the larger given number without checking whether it is a multiple of the other number, or select the product of the two numbers even when a smaller shared multiple exists. They may also identify a number that is divisible by only one member of the pair. Ask students to verify that their answer is a multiple of both numbers and that no smaller positive common multiple was skipped.
The worksheet is available as a printable PDF and as a digital quiz on Wayground, and it includes a complete answer key for checking the 12 multiple-choice and 3 fill-in-the-blank responses. For printable submissions, you can scan student work with the Wayground for Teachers app to support faster grading.
Use the worksheet’s Advanced Settings to adjust font spacing and font size so the multiple-choice options and fill-in-the-blank prompts are easier to read. You can also apply a dyslexia-friendly font or translate the worksheet into another language when those changes support access to the LCM practice.
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