A roll of ribbon is cut into 28 pieces, each \frac{3}{4} m long. What was the TOTAL length of ribbon on the roll?

28 * (3/4) = 84/4 = 21 meters

To find the total length of ribbon on the roll, we need to multiply the length of each piece by the number of pieces.

Given that each piece is 3/4 m long, we can multiply this length by the 28 pieces to find the total length.

3/4 m x 28 = 84/4 m

To simplify the result, we can divide both the numerator and denominator by their greatest common divisor, which is 4.

(84/4) ÷ (4/4) m = 21 m

Therefore, the total length of the ribbon on the roll is 21 meters.