Step-by-step explanation: We can add this in a very easy way.
Step 1- We can put the 1 in the ones place as if there is no number before a decimal (which is the case for the first number) we can assume it is 0.
Step 2- We can then place the decimal point after the 1 and then put 0.8 since there are no more numbers that are at the tenths
Step 3- At the end we add the .04 (also known as 0.04) as there are no more places in both the numbers that are in the hundredths (and in 1.8, it can also be known as 1.80 as there are none!)
Hope this helps!
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