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primary 6 | Maths | Fractions
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riz
Riz

primary 6 chevron_right Maths chevron_right Fractions chevron_right Singapore

Please help me with this question, thank you :)

Date Posted: 5 years ago
Views: 259
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snell
Snell
5 years ago
end
A: 378
B: 378

.
riz
Riz
5 years ago
Do you mind show me the workings (;;;・_・)

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AC Lim
Ac Lim's answer
13247 answers (A Helpful Person)
1st
Backward calculation. Hope this helps
Lin Jia Liang
Lin Jia Liang
5 years ago
Set A to have 35 units.
Set B to have 5 units*.

After giving away 4/7 of A to B,

Then set A to have 15 units left.
Then set B to have 5 units* + 20units.

After giving away 2/5 of B to A again,

Set A - 15 units + 8 units + 2 units*
Set B- 3 units* + 12 units

Since A and B are the same, we have
1 unit* = 11u,

90units -756
35 units-294 (A)
55 units-462 (B)