A's answer to Farhana's Primary 6 Maths Fractions Singapore question.
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(a)156
(b)3378
(b)3378
Date Posted:
3 years ago
Hope it helps :)
Pls can explain the steps. Thank u
The last number of a row is taking the original row times the next row number
So for row 15, it will be 15 X 16, which is 240. To find the smallest number, we take 15-1, which is 14. So 14 X 2=28, then 240-28=212. 212 will be the smallest number.
So for row 15, it will be 15 X 16, which is 240. To find the smallest number, we take 15-1, which is 14. So 14 X 2=28, then 240-28=212. 212 will be the smallest number.
So 212 +214 +216 +218 +220 +222 +224 +226 +228 +230 +232 +234 +236 +238 +240 will give you 3378
For a, it is 12 X 13.
Hope you understand better now :)
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