Question

raju's birthday cake was cut into 20 pieces sixteen pieces were served in party what fraction of cake was not served at the party

Answer 1

fraction of cake that was not served at the party was

4/20 i.e,1/5

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Answer 2

Total number of pieces of cake =20
Number of cakes served in party =16
Therefore fraction of cakes served in party =16/20
=4/5
so the total number of cakes not served in the party=1/5