"Fraction of remaining" is a concept that requires students to be able to understand that in the 2 fractions given, one represents "Fraction of Total" and the other represents "Fraction of Remaining".
The denominators of both fractions need not be made to be the same as both represents a different value.
Such questions usually appear in Section C of P4 exam papers.
Calculator is not allowed. (for P5 students attempting this question)
Similar question for P4 can be found here.
A tougher version for P5 can be found here.
Calvin has a collection of precious gemstones.
1/4 of his gemstones are green in colour.
1/3 of his remaining gemstones are red and the rest are blue.
He has 24 blue gemstones.
How many gemstones does Calvin have altogether?
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