AC Lim's answer to Jackyoggy's Primary 5 Maths Fractions Singapore question.

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AC Lim
Ac Lim's answer
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3/4 = 9u
Therefore
$1960 + 2u = 9u
1960 = 9u -2u
7u = 1960
1u = 280
Total = 12u
= 12 x 280
= $3360