To find the total amount of flour that Jane needs, we need to add the amounts of flour for the cake and the brownies.
The flour for the cake is \( \frac{2}{4} \) cups, which simplifies to \( \frac{1}{2} \) cups.
The flour for the brownies is \( \frac{3}{5} \) cups.
Now we need to add \( \frac{1}{2} + \frac{3}{5} \).
To add these fractions, we need a common denominator. The least common multiple of 2 and 5 is 10.
Now we can convert both fractions:
\[ \frac{1}{2} = \frac{5}{10} \] \[ \frac{3}{5} = \frac{6}{10} \]
Now we can add:
\[ \frac{5}{10} + \frac{6}{10} = \frac{11}{10} \]
\(\frac{11}{10}\) can also be expressed as \(1 \frac{1}{10}\).
So, the total amount of flour that Jane needs is \(1 \frac{1}{10}\) cups.
The correct response from the provided options is: 1 1/10 (1 and 1 tenth).
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