sstrike's answer to -'s Primary 6 Maths Fractions Singapore question.

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Sstrike's answer
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big square ABCD :
small square
= 2:1 = 8:4

(a)
2+2+1=5
5 : 8 = 122.5 : 196
Ans: 122.5cm²

(a)
2+2+1=5
8+4+2=14
Ans: 5/14