What does a 1:1 ratio mean?

##1:1## ratio is 1 part or 1 unit of a particular quantity.

for example

• two bottles of water both having 2 liters of water each the ratio will be ##2/2 = 1/1 = 1:1##
• two boxes both having 50 grams of butter each the ratio will be ##50/50 = 1/1 = 1:1##