\( \frac{3}{8}+\frac{5}{16}=\ldots \ldots \ldots \ldots \) a) \( 12 / 16 \) b) \( 11 / 16 \) c) \( 13 / 16 \) d) \( 1 / 16 \)

To solve \( \frac{3}{8} + \frac{5}{16} \), we first need to express \( \frac{3}{8} \) with a denominator of 16. To do this, we multiply both the numerator and denominator of \( \frac{3}{8} \) by 2, giving us \( \frac{6}{16} \). Now we can add the fractions: \[ \frac{6}{16} + \frac{5}{16} = \frac{11}{16} \] So the answer is \( b) \frac{11}{16} \). Keep your fractions organized! This will help prevent silly mistakes. A common error is forgetting to find a common denominator before adding, which can lead you down the wrong path. Always double-check to ensure that all fractions have the same denominator before you combine them!