P5 Math: Ratio (Before and After) Fractional Change

Ratio is a concept taught in P5 and it closely resembles simplified fractions.

The following question type requires student to be able to perform fractional decrease to one of the ratio numbers.

Such questions are common in Paper 1 of P5 and P6 exam papers.
Calculator usage is not allowed.

Petrina has markers and files in the ratio of 2:3 respectively.
She gave away 1/3 of her markers.

What is the ratio of her remaining markers to files in the end?



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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