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Primary 4 | Maths
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Date Posted: 2 years ago
Views: 251
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Find common multiple between 8 and 9. But before that, add 3 to every multiple of 9 that you have written.
———————————————————-—-
Eg.
8: 8,16,24,32,40,48..
9: 9,18,27,36,45,54…
But for the 9 multiples, you add 3 to each of them.
9 + 3 = 11
18 + 3 = 21
27 + 3 = 30
36 + 3 = 39
45 + 3 = 48 —-> 48 is a multiple of 8!
If you list it out, it’ll look like….
8: 8,16,24,32,40,48
9 (every multiple you add 3): 11,21,30,39,48
—————————————————————
Then you find common multiple from there onwards/And then, find the common number between the numbers that you added 3 with and the multiples of 8.
Therefore, answer is 48.
———————————————————-—-
Eg.
8: 8,16,24,32,40,48..
9: 9,18,27,36,45,54…
But for the 9 multiples, you add 3 to each of them.
9 + 3 = 11
18 + 3 = 21
27 + 3 = 30
36 + 3 = 39
45 + 3 = 48 —-> 48 is a multiple of 8!
If you list it out, it’ll look like….
8: 8,16,24,32,40,48
9 (every multiple you add 3): 11,21,30,39,48
—————————————————————
Then you find common multiple from there onwards/And then, find the common number between the numbers that you added 3 with and the multiples of 8.
Therefore, answer is 48.
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