P5 Fractions : Mixed numbers undergo fractional decrease

A mixed number is used to represent the mass of a substance.

This mixed number next undergo fractional decrease.
The fractional decrease may or may not include the units of measure.

Such variation will result in different method of solving and the answers will be different.

Such questions usually appear in Paper 1 of P5 Papers.
Calculator usage will not be allowed.

An easier version of this fraction problem sum can be found here.
An expert version of this question can be found here.

Sean has 2 34 litres of milk.Melissa has 2 34 litres of apple juice.
He drank 12 litre of the milk. She drank 12 of the apple juice.
What is the volume of milk he has left? What is the volume of juice she has left?



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