Answer:
yes both given ratios are equal if reduced.
Explanation:
On simplifying 30:12 we can see that common divisor of 30 and 12 is 6
therefore on dividing it by 6 ,we get ratio 5:2
Likewise 40 :16 has common divisor as 8 , therefore on dividing the ratio by 8 ,we get ratio as 5:2 again
Here we can see that simplest form of ratios for both is same as 5:2
therefore the answer is yes both given ratios are equal if reduced.