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Multiples of 3 are 3,6,9,12,15,18,21 etc.
To find a common multiple of 2 numbers first list the multiples of each number then find any that are the same. In the example to the left the common multiple of 3 and 5 is 15.
Practise Questions
WALT find common multiples
Find a common multiple of these numbers. Show your working.
1. 2 & 12
2. 3 & 7
3. 4 & 5
4. 4 & 6
Scroll down for answers when you have finished! :-)
Answers
1. 12
2. 21
3. 20
4. 12
Multiples of 3 are 3,6,9,12,15,18,21 etc.
To find a common multiple of 2 numbers first list the multiples of each number then find any that are the same. In the example to the left the common multiple of 3 and 5 is 15.
Practise Questions
WALT find common multiples
Find a common multiple of these numbers. Show your working.
1. 2 & 12
2. 3 & 7
3. 4 & 5
4. 4 & 6
Scroll down for answers when you have finished! :-)
Answers
1. 12
2. 21
3. 20
4. 12