Question

400ml of squash is made by mixing 50ml of cordial with water.

What fraction of the drink is water?
Give your answer in its simplest form.

Answer 1

7/8

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Squash: 400ml

Cordial: 50ml

Water: 400 - 50 = 350

Find the GCD of numerator and denominator

GCD of 350 and 400 is 50

Divide both the numerator and denominator by the GCD

350 ÷ 50 = 7

400 ÷ 50 = 8

Therefore, the answer is 7/8

Answer 2

7/8

Explanation:

You want the fraction of 400 mL of squash that is water when it is made with 50 mL of cordial.

Fraction

The fraction that is cordial is ...

(50 mL)/(400 mL) = 1/8

The fraction that is water is the remainder of the drink:

1 -1/8 = 7/8 of the squash is water

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