3 4/5×1+ 12 17/19 ×0+2/13×13

Let's break down the expression step by step. 1. **Calculate \(3 \frac{4}{5} \times 1\)**: \[ 3 \frac{4}{5} = \frac{3 \times 5 + 4}{5} = \frac{15 + 4}{5} = \frac{19}{5} \] Now, multiply: \[ \frac{19}{5} \times 1 = \frac{19}{5} \] 2. **Calculate \(12 \frac{17}{19} \times 0\)**: Anything multiplied by 0 is 0: \[ 12 \frac{17}{19} \times 0 = 0 \] 3. **Calculate \(\frac{2}{13} \times 13\)**: \[ \frac{2}{13} \times 13 = 2 \] 4. **Putting it all together**: Now, add the results: \[ \frac{19}{5} + 0 + 2 \] Convert 2 to a fraction with a denominator of 5: \[ 2 = \frac{10}{5} \] Adding them: \[ \frac{19}{5} + \frac{10}{5} = \frac{29}{5} \] Thus, the final answer is: \[ \frac{29}{5} \quad \text{or} \quad 5 \frac{4}{5} \]