Fraction Usage
1. The user requested to use fractions instead of decimals or whole numbers in math problems.
2. Using fractions helps express quantities exactly, avoiding rounding errors common with decimals.
3. For example, instead of writing 0.5, write $\frac{1}{2}$.
4. When performing operations, express all terms as fractions to maintain precision.
5. Simplify fractions where possible by dividing numerator and denominator by their greatest common divisor.
6. For addition and subtraction, find a common denominator before combining fractions.
7. For multiplication, multiply the numerators together and denominators together.
8. For division, multiply by the reciprocal of the divisor fraction.
9. Example: $\frac{3}{4} + \frac{2}{5} = \frac{15}{20} + \frac{8}{20} = \frac{23}{20}$.
10. Final note: fractions provide exact answers suitable for algebra and other math subjects.