Lesson 12. Lowest common multiple

Multiples

Multiples are the numbers in a multiplication table.

EXAMPLE:

 6,  12,  18,  24,  30 , ... are Multiples of 6.

The Lowest Common Multiple (LCM) of two or more numbers is the smallest number which each of these numbers will divide into.

EXAMPLE:

Here we find the LCM of 4 and 10.

The multiples of 4 are

4,  8,  12,  16,  20,  24, …

The multiples of 10 are

10,  20,  30, …

The lowest number in bout lists is 20.

The LCM of 4 and 10 is 20.

Tasks to the lesson 12

• Test 1
• Test 2
• Test 3

Other lessons:

• Lesson 1. Writing numbers
• Lesson 2. Adding whole numbers
• Lesson 3. Substracting whole numbers
• Lesson 4. Multiplication table
• Lesson 5. Multiplying whole numbers
• Lesson 6. Division whole nambers
• Lesson 7. Exponentiation
• Lesson 8. Sizes and their measuring
• Lesson 9. Dividing whole numbers with remainder
• Lesson 10. Factors and prime numbers
• Lesson 11. Highest common factor
• Lesson 13. Equivalent fractions
• Lesson 14. Transformation of fraction
• Lesson 15. Adding fractions
• Lesson 16. Subtract fractions
• Lesson 17. Multiplying fractions
• Lesson 18. Dividing fractions
• Lesson 21. Eventual decimal fractions
• Lesson 22. Adding decimals
• Lesson 23. Subtracting decimals
• Lesson 24. Multiplying decimals
• Lesson 25. Dividing decimals
• Lesson 26. Rounding numbers