Question

Chrissy had 1/5 of birthday cake left she has divided in 3 pieces

Answer 1

Answer: Each will get 1/15 of the original size of the cake

`\begin{gathered} \text{Let the original size of the cake be x} \\ \text{She has }(1)/(5)\text{ of the cake left after the party} \\ \text{The remaining cake left is }(1)/(5)\text{ x original size of the cake} \\ =\text{ }(1)/(5)\cdot\text{ x} \\ =\text{ }(x)/(5) \\ \text{She divide the cake among her mum, dad, and brother equally} \\ (x)/(5)\text{ divided by 3} \\ (x)/(5)\cdot\text{ }(1)/(3) \\ =\text{ }(x)/(15) \\ \text{Each will get }\frac{1}{15\text{ }}\text{ of the original size of the cake} \end{gathered}`