P5/P6 Math: Fractions with and without units (expert)

Problem sums with different fractions in the same question.

Many students will simply start doing fraction subtraction by making the denominator to the a common multiple of the 3 denominators. 

But that will result in a wrong answer as not all fractions are representing the same total.

Eg. ¹/₄ kg of the rice is not the same as ¹/₄ of the rice.

¹/₄ kg of rice represents ¹/₄ of a kilogram of rice

but

¹/₄ of rice represents ¹/₄ of the total of all the rice.

Such questions usually appear in Paper 1.

Calculator usage is not allowed.

Janelle has ⁸/₉ kg of rice at first.

She gave ¹/₂ of the rice to her mum and made dumplings using ¹/₃ kg of the rice.

How much rice does she have left?

(Leave your answer in kg)

If the above question is easy, try to do the more challenging question below.

The question below will randomize with different numbers every hour. 

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P6 Math: Before and After Ratio (Expert)

A total of 3 ratios are given for this question type.

Starting ratio (before), ending ratio (after) and the ratio of change will be given for such questions.

Such questions will appear in Paper 2 of P6 Math exams.

Calculator usage is allowed.

Robin have a total of 384 grapes and berries in the ratio of 5:3 respectively.

He then gave away some grapes and bought more berries in the ratio of 2:1.

After that, the ratio of grapes to berries became 1:1.

How many grapes were given away?

If the above question is easy, try to do the more challenging question below.

The question below will randomize with different numbers every hour. 

Copy below question down before making attempt.

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