To solve \( \frac{3}{4} - \frac{2}{5} \), we follow these steps:

1. Find a common denominator for the two fractions. The least common denominator (LCD) of 4 and 5 is 20.
2. Convert both fractions to have this denominator:
   \[
   \frac{3}{4} = \frac{15}{20} \quad \text{(since } 3 \times 5 = 15 \text{ and } 4 \times 5 = 20\text{)}
   \]
   \[
   \frac{2}{5} = \frac{8}{20} \quad \text{(since } 2 \times 4 = 8 \text{ and } 5 \times 4 = 20\text{)}
   \]
3. Subtract the numerators:
   \[
   \frac{15}{20} - \frac{8}{20} = \frac{15 - 8}{20} = \frac{7}{20}
   \]

So, \( \frac{3}{4} - \frac{2}{5} = \frac{7}{20} \).

Would you like more details or have any questions?

Here are 5 related questions:
1. What is \( \frac{3}{5} + \frac{1}{4} \)?
2. How do you subtract fractions with different denominators?
3. Can you simplify \( \frac{7}{20} \) further?
4. What is the sum of \( \frac{3}{4} \) and \( \frac{2}{5} \)?
5. How do you multiply \( \frac{3}{4} \times \frac{2}{5} \)?

**Tip:** Always check if fractions can be simplified after performing addition or subtraction.

Learn how to subtract fractions with different denominators, such as 3/4 - 2/5. This detailed solution explains the process of finding the least common denominator and simplifying fractions, perfect for students in Grades 5-7.

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