Victoria is baking muffins and a cake. The muffin recipe uses $\frac{2}{3}$23 of a cup of sugar, while the cake recipe uses $\frac{1}{4}$14 of a cup of sugar.
How much sugar is needed in total to bake the muffins and the cake?
Tina runs $\frac{1}{8}$18 of a mile on her way to school, then walks the remaining $\frac{4}{5}$45 of a mile.
How far does she travel in total to get to school?
Yuri has $\frac{8}{9}$89 meters of ribbon. After he uses some ribbon to wrap a present, he has $\frac{1}{8}$18 meters left.
How much ribbon did he use for the present?
At an outdoor animal-themed event, Vincent spends $\frac{3}{9}$39 of an hour visiting chickens and $\frac{3}{7}$37 of an hour visiting alpacas.
How much time does he spend visiting these animals?