2.5/11•2=

To calculate \( \frac{2.5}{11} \times 2 \), you can follow these steps:

1. First, calculate \( \frac{2.5}{11} \): \[ \frac{2.5}{11} \approx 0.2273 \quad (\text{rounded to four decimal places}) \]

2. Then multiply this result by 2: \[ 0.2273 \times 2 \approx 0.4545 \quad (\text{rounded to four decimal places}) \]

So, \( \frac{2.5}{11} \times 2 \approx 0.4545 \).

For a more precise answer: \[ \frac{2.5 \times 2}{11} = \frac{5}{11} \approx 0.4545 \quad (\text{exactly}) \]

Therefore, \( \frac{2.5}{11} \times 2 = \frac{5}{11} \) or approximately \( 0.4545 \).