4 multiples of 5 which are also multiples of 3 are ___
Answers
Answer:
There are an infinite number of multiples for three but one way to look at them is to see if they come in the three times table.
For example
3,6,9 are all multiples of three
54,129 are also multiples of three as if you write the 3 times table up till 43 x 3 you will come across these two numbers
There is also a trick to find out if a number is in the three times table:
If you want to see if 54 is a multiple of 3 you would add the digits together (5+4) to get 9. If the answer to your sum is in the 3 times table it is correct. We all know that 9 is. The point is to transform long digit numbers into ones you can easily identify.
If we take another example 124, 1 + 2 + 4 is 7. We all know 7 is not in the three tunes table, therefore it cannot be a multiple of three.
Answer:
15,30,45,60,75,90
these are some multiple of both