To calculate \( \frac{1}{2} \times \frac{7}{10} \times 2 \), you can follow these steps:
- Multiply \( \frac{1}{2} \) and \( \frac{7}{10} \):
\[ \frac{1}{2} \times \frac{7}{10} = \frac{1 \times 7}{2 \times 10} = \frac{7}{20} \]
- Next, multiply \( \frac{7}{20} \) by \( 2 \):
\[ \frac{7}{20} \times 2 = \frac{7 \times 2}{20} = \frac{14}{20} \]
- Simplify \( \frac{14}{20} \):
\[ \frac{14}{20} = \frac{7}{10} \quad (\text{dividing both numerator and denominator by 2}) \]
So, the final answer is:
\[ \frac{7}{10} \]