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## Question

primary 5 | Maths
| Fractions

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Because they didn't start of with 5/7 and 4/5 of the same amount of money. They started with different amounts of money so the fractions will be different

= 1 - 5/7 = 2/7

Fraction of $ that Mrs Lee had left

= 1 - 4/5 = 1/5

Since they had same amount of money left, we can say that they have the same units left. So we make the numerator the same.

1/5 = 2/10

From this we see that Mdm Tan has 7 units at first, and Mrs Lee has 10 units at first. And in the end, each had 2 units left.

Difference of their money at first = 10 units - 7 units = 3 units

3 units = $546

1 unit = $546 ÷ 3 = $182

$ that Mdm Tan had at first

= 7 units

= $182 x 7

= $1274

$ Mrs Lee had left

= 2 units

= $182 x 2

= $364

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