Do these ratios form a proportion?
45 large ribbons to 21 small ribbons
42 large ribbons to 23 small ribbons
To determine if these ratios form a proportion, we need to check if the fractions obtained by dividing the number of large ribbons by the number of small ribbons are equal for both ratios.
For the first ratio, we have:
45 large ribbons / 21 small ribbons = 2.142857142857143
For the second ratio, we have:
42 large ribbons / 23 small ribbons = 1.826086956521739
Since 2.142857142857143 is not equal to 1.826086956521739, the ratios do not form a proportion.