To solve this problem, first we have to figure out how many necklaces were sold online and how many were sold in the shop. We are told that 180 necklaces were sold online, and 240 necklaces were sold total. To find how many necklaces were sold in the shop, we need to subtract the number of necklaces sold online from the total number of necklaces.
240 - 180 = 60
Therefore, the ratio of online sales to shop sales is 180:60.
To simplify this ratio, we need to find the greatest common factor of these two numbers, which is 60. Now, we must divide each part of the ratio by the GCF to simplify.
180/60:60/60 = 3:1
Therefore, your answer is 3:1.
Hope this helps!
