1. The problem is to understand and clarify the difference between a fraction and a subtraction sign. 2. A fraction represents division between two numbers, written as $\frac{a}{b}$, where $a$ is the numerator and $b$ is the denominator. 3. A subtraction sign is the minus symbol $-$ used to indicate the operation of subtracting one number from another. 4. For example, $\frac{3}{4}$ is a fraction meaning 3 divided by 4, while $3 - 4$ means 3 minus 4. 5. It is important not to confuse the two because they represent different mathematical operations. 6. Fractions are written with a horizontal or slanted line separating numerator and denominator, while subtraction is a simple minus sign between two numbers. 7. In summary, a fraction is a division expression $\frac{a}{b}$, and a subtraction sign is the operator $-$ between two numbers.