Question

Santa read 1/5 of the book before lunch & 3/5 after lunch. What part of the book has he read?

Answer 1

Given that:

Part of the book Santa read before lunch = 1/5

Part of the book Santa read after lunch = 3/5

Part of the book Santa has read

= Part of the bok Santa read before lunch + Part of the book Santa read after lunch

$\begin{gathered} =\frac{1}{5}+\frac{3}{5} \\ =\frac{1+3}{5} \\ =\frac{4}{5} \end{gathered}$