Use N;1 to compare which ratio is greater between 3;4 and 4;5
To compare the ratios 3:4 and 4:5, we can use the cross multiplication method.
For the ratio 3:4:
3/4 = N/1
Cross multiply: 3 x 1 = 4 x N
3 = 4N
N = 3/4
For the ratio 4:5:
4/5 = N/1
Cross multiply: 4 x 1 = 5 x N
4 = 5N
N = 4/5
Comparing the values of N calculated for each ratio, we find that:
3/4 < 4/5
Therefore, the ratio 4:5 is greater than the ratio 3:4.