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lcm questions for class 6

Introducing the Concept of LCM The lowest common multiple (LCM) is an important math concept that students begin learning around class 6. The LCM of two or more numbers is the smallest positive number that is divisible by all those numbers without a remainder. Understanding LCM helps students grasp concepts like fractions and ratios more easily later on. Here we will explore some basic LCM questions appropriate for class 6 students to help them practice this concept.

Here are some example LCM (Lowest Common Multiple) questions suitable for class 6 students:

  1. What is the LCM of 8 and 12?
  • Multiples of 8 are: 8, 16, 24, 32, 40…
  • Multiples of 12 are: 12, 24, 36, 48…
  • The lowest common multiple is 24.
  1. Find the LCM of 6, 9 and 15
  • Multiples of 6 are: 6, 12, 18, 24, 30…
  • Multiples of 9 are: 9, 18, 27, 36…
  • Multiples of 15 are: 15, 30, 45…
  • The LCM is 30.
  1. Rita is making flower garlands with 4 pink flowers and 6 white flowers. How many total minimum number of flowers does she need so she can make matching bracelets with same pattern?
  • LCM of 4 and 6 is 12
  • So the total flowers needed is 12
  1. The LCM of 10 and 15 is?
  • Multiples of 10 are: 10, 20, 30, 40, 50…
  • Multiples of 15 are: 15, 30, 45…
  • The LCM is 30
  1. A printing machine prints pages in 5 pages or 8 pages at a time. What is the minimum number pages it would print to have both 5 and 8 pages printed?
  • LCM of 5 and 8 is 40.
  • So the printer would print 40 pages.

Conclusion

In conclusion, exploring Least Common Multiples (LCM) in class 6 provides a foundation for understanding how to find the smallest common multiples between numbers. It enhances problem-solving skills and lays the groundwork for more advanced mathematical concepts. Regular practice and application of LCM concepts contribute to a well-rounded understanding of arithmetic for students at this level.

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