1. **Problem:** Add the fractions with like denominators. 2. **Formula:** When adding fractions with the same denominator, add the numerators and keep the denominator the same: $$\frac{a}{d} + \frac{b}{d} = \frac{a+b}{d}$$ 3. **Important rule:** If the numerator sum is greater than or equal to the denominator, convert the improper fraction to a mixed number by dividing numerator by denominator. 4. **Step-by-step for the first problem:** - Given: $$\frac{3}{5} + \frac{4}{5}$$ - Add numerators: $$3 + 4 = 7$$ - Write sum: $$\frac{7}{5}$$ - Since 7 > 5, convert to mixed number: $$7 \div 5 = 1 \text{ remainder } 2$$ So, $$\frac{7}{5} = 1 \frac{2}{5}$$ 5. **Answer:** $$1 \frac{2}{5}$$ This method applies to all problems listed. **Summary:** Add numerators, keep denominator, convert improper fractions to mixed numbers if needed. Final answer for problem 1: **1 2/5**