3/23*847+20/23*847

To solve the expression \( \frac{3}{23} \times 847 + \frac{20}{23} \times 847 \), we can factor out \( 847 \) since it is common in both terms:

\[ \frac{3}{23} \times 847 + \frac{20}{23} \times 847 = \left( \frac{3}{23} + \frac{20}{23} \right) \times 847 \]

Now, we can add the fractions:

\[ \frac{3 + 20}{23} = \frac{23}{23} = 1 \]

Substituting back into the equation:

\[ 1 \times 847 = 847 \]

So, the result of the expression is:

\[ \boxed{847} \]