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Primary 4 | Maths
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Date Posted: 4 years ago
Views: 317
Ohhhh. I had that question when I was P4 too
multiples of 8
8, 16, 24, 32, 40, 48, 56, 64, ...
multiples of 8 - 3
5, 13, 21, 29, 37, 45, 53, 61 ...
multiples of 9
9, 18, 27, 36, 45, 54, 63, ...
multiples of 9 - 2
7, 16, 25, 34, 43, 52, 61 ...
compare
5, 13, 21, 29, 37, 45, 53, 61 ...
with
7, 16, 25, 34, 43, 52, 61 ...
hence,
common least number is 61
8, 16, 24, 32, 40, 48, 56, 64, ...
multiples of 8 - 3
5, 13, 21, 29, 37, 45, 53, 61 ...
multiples of 9
9, 18, 27, 36, 45, 54, 63, ...
multiples of 9 - 2
7, 16, 25, 34, 43, 52, 61 ...
compare
5, 13, 21, 29, 37, 45, 53, 61 ...
with
7, 16, 25, 34, 43, 52, 61 ...
hence,
common least number is 61
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