3.99+39.9 i need it step by step ty in advance

Question

3.99+39.9 solved step by step

Answer 1

3.99 + 39.9  =  3.99 + 39.90 we add the integer parts of the numbers it is 3 + 39 = 42

then we add the decimal parts it is 0.99 + 0.90 = 1.89 then we add this to the integer part

it is 42 + 1.89  or 42.00 + 1.89 = 43.89