Real-World Examples of Fraction Addition and Subtraction

📚 Quick Study Guide

🔢 Fractions represent parts of a whole. They consist of a numerator (top number) and a denominator (bottom number). ➕ To add or subtract fractions, they must have a common denominator. ➗ If the denominators are different, find the least common multiple (LCM) of the denominators. ✏️ Convert each fraction to an equivalent fraction with the common denominator. 📐 Once the denominators are the same, add or subtract the numerators. The denominator remains the same. 💡 Simplify the resulting fraction, if possible.

Practice Quiz

1. Maria is baking a cake. The recipe calls for $\frac{1}{4}$ cup of sugar and $\frac{2}{4}$ cup of flour. How much more flour than sugar does the recipe require?
   1. $\frac{3}{4}$ cup
   2. $\frac{1}{4}$ cup
   3. $\frac{1}{2}$ cup
   4. $\frac{3}{8}$ cup
2. John is building a birdhouse. He needs a piece of wood that is $\frac{2}{5}$ meter long. He has a piece that is $\frac{4}{5}$ meter long. How much should he cut off?
   1. $\frac{6}{5}$ meter
   2. $\frac{2}{5}$ meter
   3. $\frac{1}{5}$ meter
   4. $\frac{8}{25}$ meter
3. Sarah walked $\frac{1}{3}$ of a mile to the store and then $\frac{1}{6}$ of a mile to her friend's house. How far did she walk in total?
   1. $\frac{1}{9}$ mile
   2. $\frac{2}{9}$ mile
   3. $\frac{1}{2}$ mile
   4. $\frac{5}{6}$ mile
4. A pizza is cut into 8 slices. Tom eats $\frac{2}{8}$ of the pizza, and Jane eats $\frac{3}{8}$ of the pizza. How much of the pizza is left?
   1. $\frac{5}{8}$
   2. $\frac{1}{4}$
   3. $\frac{3}{8}$
   4. $\frac{1}{2}$
5. A bottle is $\frac{3}{5}$ full of water. If you drink $\frac{1}{5}$ of the bottle, how much water is left?
   1. $\frac{4}{5}$
   2. $\frac{2}{5}$
   3. $\frac{2}{25}$
   4. $\frac{3}{25}$
6. Mark spent $\frac{1}{2}$ of his allowance on a toy and $\frac{1}{8}$ of his allowance on candy. What fraction of his allowance did he spend in total?
   1. $\frac{1}{16}$
   2. $\frac{5}{8}$
   3. $\frac{3}{8}$
   4. $\frac{1}{4}$
7. Lisa has $\frac{7}{10}$ of a chocolate bar. She gives $\frac{2}{10}$ to her friend. How much of the chocolate bar does Lisa have left?
   1. $\frac{9}{10}$
   2. $\frac{5}{10}$
   3. $\frac{1}{2}$
   4. $\frac{14}{100}$