Write as an improper fraction.

To convert the mixed number into an improper fraction, start by multiplying the whole number (3) by the denominator (8). That gives you . Next, add the numerator (7) to that product: . Finally, place that sum over the original denominator: . So, as an improper fraction is .

To double-check, you can visualize this by thinking of as three groups of eight eighths (which is 24 eighths) plus seven eighths—confirming it gives you eighths total! That’s your improper fraction nicely packaged!