Fiona has a recipe that requires $\frac{1}{6}$16 cup of sugar, $\frac{2}{6}$26 cup of milk, and $\frac{1}{6}$16 cup of flour.
Plot the amount of sugar there is on the number line.
Fiona mixes in the milk with the sugar. Plot the amount of cups the full mix now takes up.
Finally, Fiona adds the flour. How many cups is the final mix? Plot your answer on the number line.
We want to calculate the sum $\frac{1}{2}+\frac{3}{8}$12+38.
We want to calculate the sum $\frac{1}{3}+\frac{2}{9}$13+29.